Keyword: planetx

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  • The south is SINKING: Giant chunks of the Earth's mantle are falling off and causing quakes across

    05/04/2016 7:43:25 PM PDT · by Fractal Trader · 60 replies
    Daily Mail ^ | 4 MAy 2014 | MARK PRIGG
    The southeastern United States has been hit by a series of strange unexplained quakes - most recently, the 2011 magnitude-5.8 earthquake near Mineral, Virginia that shook the nation's capital. Researchers have been baffled, believing the areas should be relatively quiet in terms of seismic activity, as it is located in the interior of the North American Plate, far away from plate boundaries where earthquakes usually occur. Now, they believe the quakes could be caused by pieces of the Earth's mantle breaking off and sinking into the planet.
  • NASA reports Cassini spacecraft orbit unaffected by theorized undiscovered Planet 9

    04/10/2016 8:30:14 PM PDT · by BenLurkin · 9 replies
    clarksvilleonline.com ^ | 04/10/2016 | Preston Dyches
    Contrary to recent reports, NASA’s Cassini spacecraft is not experiencing unexplained deviations in its orbit around Saturn, according to mission managers and orbit determination experts at NASA’s Jet Propulsion Laboratory in Pasadena, California. Several recent news stories have reported that a mysterious anomaly in Cassini’s orbit could potentially be explained by the gravitational tug of a theorized massive new planet in our solar system, lurking far beyond the orbit of Neptune.
  • Scientists just found more evidence that Planet Nine exists in our Solar System

    03/29/2016 8:09:38 AM PDT · by Red Badger · 48 replies
    http://www.sciencealert.com ^ | 29 MAR 2016 | Bec Crew
    And this new planet could be huge. Back in January, the astronomer who led the charge to have Pluto demoted to dwarf planet status announced that he’d just found evidence that a huge, icy planet could be lurking on the edge of the Solar System, just past Neptune. Mike Brown, a planetary astronomer at Caltech University, estimated that the hypothetical 'Planet Nine' appears to be circling the Sun on a super-elongated orbit that takes an incredible 10,000 to 20,000 years to complete. And now, thanks to a newly detected Kuiper Belt Object (KBO) that’s acting really strange, Brown says the...
  • When straying Jupiter went on the pull

    02/15/2012 4:46:03 AM PST · by SunkenCiv · 15 replies
    SkyMania ^ | February 13th, 2012 | Kulvinder Singh
    The path of true love never runs smooth, it is said. Especially on Valentine's Day. And for young planets, that path turns out to be an inward-moving annulus. A simulation by scientists in France and USA appears to show that Jupiter once strayed to flirt with the inner Solar System, before being "jilted" and sent back to its present-day position. The effect of this was to form the inner planets, according to the theory, which comes up with mass ratios for Earth and Mars similar to that observed today and which, remarkably, also accurately depicts the Asteroid Belt. If the...
  • 'Jupiter swallowed planet 10 times the size of Earth'

    08/13/2010 12:01:53 PM PDT · by LibWhacker · 36 replies · 1+ views
    Jupiter, the biggest planet in the solar system, might have gained its dominant position after swallowing up a smaller planet, scientists believe. Studies on Jupiter have revealed that the giant planet, which is more than 120 times bigger than the Earth, has an extremely small core that weighs just two to 10 Earth masses. Now scientists have claimed that Jupiter's core might have been vaporised in huge collision with a planet up to ten times the size of Earth, the New Scientist reported. Researchers led by by Shu Lin Li of Peking University in China have modelled what might have...
  • Gas Giants Jump Into Planet Formation Early

    06/27/2007 1:26:43 AM PDT · by SunkenCiv · 3 replies · 169+ views
    Science Daily ^ | January 9, 2007 | University of Arizona
    This is an artist's concept of a hypothetical 10-million-year-old star system. The bright blur at the center is a star much like our sun. The other orb in the image is a gas-giant planet like Jupiter. Wisps of white throughout the image represent traces of gas. Astronomers using NASA's Spitzer Space Telescope have found evidence showing that gas-giant planets either form within the first 10 million years of a sun-like star's life, or not at all. The lifespan for sun-like stars is about 10 billion years. The scientists came to this conclusion after searching for traces of gas around...
  • New insights into composition of giant planets

    10/18/2006 11:22:12 PM PDT · by SunkenCiv · 4 replies · 322+ views
    Spaceflight Now ^ | October 18, 2006 | Division For Planetary Sciences
    In our Solar System, four planets stand out for their sheer mass and size. Jupiter, Saturn, Uranus and Neptune indeed qualify as "giant planets" because they are larger than any terrestrial planet and much more massive than all other objects in the Solar System, except the Sun, put together. According to Dr. Guillot, "the giant planets, because of their gravitational might, they have played a key role in the formation of the Solar System, tossing around many objects in the system, preventing the formation of a planet in what is now the asteroid belt, and directly leading to the formation...
  • Jupiter Increases Risk Of Comet Strike On Earth

    08/24/2007 1:21:38 PM PDT · by blam · 84 replies · 1,235+ views
    New Scientist ^ | 8-24-2007 | David Shiga
    Jupiter increases risk of comet strike on Earth 11:53 24 August 2007 NewScientist.com news service David Shiga Earth experienced an especially heavy bombardment of asteroids and comets early in the solar system's history (Illustration: Julian Baum) Contrary to prevailing wisdom, Jupiter does not protect Earth from comet strikes. In fact, Earth would suffer fewer impacts without the influence of Jupiter's gravity, a new study says. It could have implications for determining which solar systems are most hospitable to life. A 1994 study showed that replacing Jupiter with a much smaller planet like Uranus or Neptune would lead to 1000 times...
  • NASA Finds Another Solar System Mystery based on Stardust mission

    03/13/2006 6:19:02 PM PST · by NormsRevenge · 22 replies · 1,261+ views
    ap on San Diego Union Tribune ^ | 3/13/06 | Pam Easton - ap
    SPACE CENTER, Houston – NASA scientists have a new mystery to solve: How did materials formed by fire end up on the outermost reaches of the solar system, where temperatures are the coldest? The materials were contained in dust samples captured when the robotic Stardust spacecraft flew past the comet Wild 2 in 2004. A 100-pound capsule tied to a parachute returned the samples to Earth in January. The samples include minerals such as anorthite, which is made up of calcium, sodium, aluminum and silicate; and diopside, made of calcium magnesium and silicate. Such minerals only form in very high...
  • The Curious Case of Missing Asteroids

    03/03/2009 7:31:32 PM PST · by SunkenCiv · 38 replies · 720+ views
    NASA Solar System Exploration ^ | February 25, 2009 | Lori Stiles
    University of Arizona scientists have uncovered a curious case of missing asteroids. The main asteroid belt is a zone containing millions of rocky objects between the orbits of Mars and Jupiter. The scientists find that there ought to be more asteroids there than researchers observe. The missing asteroids may be evidence of an event that took place about 4 billion years ago, when the solar system's giant planets migrated to their present locations. UA planetary sciences graduate student David A. Minton and UA planetary sciences professor Renu Malhotra say missing asteroids is an important piece of evidence to support an...
  • The Chaotic Genesis of Planets [ FREE PREVIEW ]

    05/01/2008 9:35:33 AM PDT · by SunkenCiv · 18 replies · 48+ views
    Scientific American ^ | April 2008 | Douglas N. C. Lin
    ...planets are the most diverse and intricate class of object in the universe. No other celestial bodies support such a complex interplay of astronomical, geologic, and chemical and biological processes... The worlds of our solar system... hardly prepared us for the discoveries of the past decade, during which astronomers have found more than 200 planets. The sheer diversity of these bodies' masses, sizes, compositions and orbits challenges those of us trying to fathom their origins. When I was in graduate school in the 1970s, we tended to think of planet formation as a well-ordered, deterministic process -- an assembly line...
  • On the Fringe: Astronomers look to the Kuiper belt for clues to the solar system's history

    01/14/2010 3:15:11 PM PST · by SunkenCiv · 12 replies · 732+ views
    Science News ^ | January 16th, 2010 | Ron Cowen
    Beyond Neptune lies a reservoir of... icy debris left to roam the solar system's dim outer limits having never coalesced into planets... Named for astronomer Gerard Kuiper, who in 1951 predicted the existence of this 3-billion-kilometer-wide swath of icy chunks, the Kuiper belt didn't begin to reveal itself to observers until 1992. Since then, researchers have found more than a thousand bodies filling a doughnut-shaped belt, which extends 30 to about 50 astronomical units from the sun. One astronomical unit is the average distance between the Earth and sun... The puffed-up, elongated orbits and present-day sparseness of the belt all...
  • Asteroid Belt Loaded with Former Comets

    07/16/2009 7:32:16 PM PDT · by SunkenCiv · 18 replies · 1,536+ views
    Discovery ^ | Thursday, July 16, 2009 | AFP
    Many of the primitive bodies wandering the asteroid belt between Mars and Jupiter are former comets, tossed out of orbit by a brutal ballet between the giant outer planets, said a team of astrophysicists. A commonly accepted theory is that the asteroid belt is the rubble left over from a "proto-planetary disk," the dense ring of gas that surrounds a new-born star. But the orbiting rocks have long been a source of deep curiosity. They are remarkably varied, ranging from mixtures of ice and rock to igneous rocks, which implies they have jumbled origins. The answer to the mystery, according...
  • Were Mercury and Mars separated at birth?

    01/19/2009 3:32:30 PM PST · by SunkenCiv · 23 replies · 542+ views
    New Scientist ^ | Monday, January 19, 2009 | unattributed
    Line up Mercury, Venus, Earth and Mars according to their distance from the sun and you'll see their size distribution is close to symmetrical, with the two largest planets between the two smallest. That would be no coincidence -- if the pattern emerged from a debris ring around the sun. Brad Hansen of the University of California, Los Angeles, built a numerical simulation to explore how a ring of rocky material in the early solar system could have evolved into the planets. He found that two larger planets typically form near the inner and outer edges of the ring, corresponding...
  • Are Jupiters Hard to Come By?

    08/12/2008 10:01:25 AM PDT · by SunkenCiv · 6 replies · 110+ views
    Sky and Telescope 'blogs ^ | July 11, 2008 | Camille M. Carlisle
    Using the new Combined Array for Research in Millimeter Astronomy (CARMA), Eisner and his colleagues observed more than 250 stars in Orion's central region and found that less than 8% had dust disks thought massive enough to create a Jupiter. The radiation from hot, massive stars in the cluster probably clears out a lot of surrounding material and keeps high-mass disks from forming, explains co-author John Carpenter (Caltech). In all, about 10% of the observed stars emit radiation associated with warm dust disks. The results agree almost perfectly with findings by Geoff Marcy (UC Berkeley) and his colleagues, who conclude...
  • Search Narrows For Planet Nine

    02/25/2016 8:57:45 AM PST · by LibWhacker · 32 replies
    Universe Today ^ | 2/25/16 | Bob King
    Based on a careful study of Saturn's orbit and using mathematical models, French scientists were able to whittle down the search region for Planet Nine to "possible" and "probable" zones. Source: CNRS, Cote d'Azur and Paris observatories. Created by the author Astronomy, Cassini, Planet News, Solar SystemSearch Narrows For Planet Nine 25 Feb , 2016 by Bob King An imagined view from Planet Nine looking back toward the Sun. Astronomers think the massive, distant planet is gaseous, similar to the other giant planets in our Solar System. Credit: Wikipedia Last month, planetary scientists Mike Brown and Konstantin Batygin of...
  • Don't Blame 'Planet Nine' for Earth's Mass Extinctions

    01/26/2016 8:03:21 AM PST · by BenLurkin · 24 replies
    space.com ^ | 01/25/2016 | mike wall
    Planet Nine - a newly proposed but not yet confirmed world perhaps 10 times more massive than Earth that's thought to orbit far beyond Pluto — probably could not have triggered such "death from the skies" events, researchers said. Planet Nine likely has an elliptical orbit, coming within 200 to 300 astronomical units (AU) of the sun at its closest approach and getting as far away as 600 to 1,200 AU, Brown said. (One AU is the distance from Earth to the sun - about 93 million miles, or 150 million kilometers). Neptune orbits about 30 AU from the sun,...
  • Researchers find evidence of a real ninth planet

    01/20/2016 7:52:49 PM PST · by Utilizer · 31 replies
    Phys.org ^ | January 20, 2016 | Kimm Fesenmaier
    Caltech researchers have found evidence of a giant planet tracing a bizarre, highly elongated orbit in the outer solar system. The object, which the researchers have nicknamed Planet Nine, has a mass about 10 times that of Earth and orbits about 20 times farther from the sun on average than does Neptune (which orbits the sun at an average distance of 2.8 billion miles). In fact, it would take this new planet between 10,000 and 20,000 years to make just one full orbit around the sun. The researchers, Konstantin Batygin and Mike Brown, discovered the planet's existence through mathematical modeling...
  • Ninth Planet May Exist in Solar System Beyond Pluto, New Evidence Suggests

    01/20/2016 12:01:57 PM PST · by presidio9 · 50 replies
    The New York Times ^ | JAN. 20, 2016 | KENNETH CHANG
    There might be a ninth planet in the solar system after all - and it is not Pluto. Two astronomers reported on Wednesday that they had compelling signs of something bigger and farther away — something that would definitely satisfy the current definition of a planet, where Pluto falls short. "We are pretty sure there's one out there," said Michael E. Brown, a professor of planetary astronomy at the California Institute of Technology. What Dr. Brown and a fellow Caltech professor, Konstantin Batygin, have not done is actually find that planet, so it would be premature to revise mnemonics of...
  • There's a ninth planet in our solar system - we just can't see it yet, study says

    01/20/2016 1:43:51 PM PST · by BenLurkin · 39 replies
    l a times ^ | 01/20/2016 | amina khan
    Scientists have been wondering whether a "Planet X" exists in the dim regions far beyond the known planets, but it has remained largely speculative.... That started to change in March 2014, when a pair of astronomers announced that they’d discovered a brand-new dwarf planet, 2012 VP113, beyond the well-populated edge of the Kuiper belt, whose main mass stretches from Neptune’s orbit around 30 astronomical units (or 30 times the Earth-Sun distance) out to 50 astronomical units. It wasn’t the only such object: Sedna, a 600-mile-wide rock discovered in 2003, also boasted this far-out orbit, and it seemed to be making...
  • Scientists may have found Planet X, the mysterious presence that has eluded astronomers

    12/12/2015 1:40:04 AM PST · by Squawk 8888 · 66 replies
    National Post ^ | December 11, 2015 | Sarah Kaplan
    It’s a big, dark presence at the farthest reaches of our solar system, a mysterious force powerful enough to skew the paths of planets in orbit and yet so subtle that it slips undetected past even the most powerful telescopes on Earth. For centuries, it has eluded some of the most brilliant minds in astronomy — some say it even destroyed one. It’s the subject of endless calculations and rampant speculation, crackpot theories and countless hours spent gazing, fruitlessly, at the night sky. It’s known as Planet X. And on Tuesday, a group of astronomers said they’d found not just...
  • Is there a Planet X, a ‘massive perturber,’ hidden beyond Pluto?

    09/05/2015 7:46:28 PM PDT · by BenLurkin · 32 replies
    Washington Post ^ | September 3 | Joel Achenbach
    The paper ... noted that a number of large, very remote objects share a similar orbital angle. That's suspicious if you're an astronomer expecting to see a random distribution of objects. The key orbital feature is known, rather obtusely, as the “argument of perihelion.” We're not shy of complicated orbital concepts (we try to toss around the phrase "obliquity of the ecliptic" whenever possible), but this one is not very easy to explain. "The argument of perihelion is the angle at which an object comes to perihelion with respect to the ecliptic plane," Sheppard said in an e-mail. Mike Brown,...
  • Obama admin stonewalling on big ammo buildup

    03/21/2013 10:15:52 PM PDT · by Perseverando · 66 replies
    WND ^ | March 21, 2013 | Garth Kant
    <p>Lawmaker: 'They refuse to let us know what is going on'</p> <p>Members of Congress are demanding the Obama administration explain why it is stockpiling a huge arsenal of ammunition and weapons.</p> <p>The Department of Homeland Security bought more than 1.6 billion rounds of ammunition over the last year, as well as thousands of armored vehicles.</p>
  • Doomsday Scenarios Play Out in New Show

    03/21/2013 4:49:08 PM PDT · by BenLurkin · 9 replies
    weather.com ^ | Published: Mar 13, 2013, 6:18 AM EDT | Jess Baker
    Every day we live and breathe among disasters waiting to happen. The Weather Channel's new series "Forecasting the End" dives into the hair-raising theories behind earth-ending science. Hear how disasters like super-volcanoes, mega-tsunamis and deadly solar flares aren't as far-fetched as you think.
  • Mysterious ‘boom’ heard across region

    03/20/2013 11:31:27 AM PDT · by BenLurkin · 38 replies
    dailyamericannews ^ | Mar. 18, 2013 9:34 am | By Gina Blankenship
    Loud noise heard in Southern Illinois Saturday afternoon has residents puzzled Social media was abuzz this weekend following what is begin described as a “loud boom” that was heard all over Southern Illinois Saturday. The source of the noise is unknown and, according to some, has been recurring for the past several weeks. Loud and mysterious booms are being heard and felt around the region. For more than a month, the noise has been compared to a sonic boom, tannerite, shotgun, dynamite or cannon. The theories surrounding the source of the “loud bangs” range from fracking to supersonic jets, meteors...
  • Large asteroid heading to Earth? Pray, says NASA

    03/19/2013 7:28:06 PM PDT · by NormsRevenge · 101 replies
    Yahoo! News ^ | 3/19/13 | Irene klotz - Reuters
    CAPE CANAVERAL, Florida (Reuters) - NASA chief Charles Bolden has advice on how to handle a large asteroid headed toward New York City: Pray. That's about all the United States - or anyone for that matter - could do at this point about unknown asteroids and meteors that may be on a collision course with Earth, Bolden told lawmakers at a U.S. House of Representatives Science Committee hearing on Tuesday. An asteroid estimated to be have been about 55 feet in diameter exploded on February 15 over Chelyabinsk, Russia, generating shock waves that shattered windows and damaged buildings. More than...
  • Congressmen Demand DHS Explain 1.6 Billion Bullets Purchase

    03/19/2013 1:43:50 PM PDT · by EXCH54FE · 65 replies
    Freedom Outpost ^ | Mar. 19, 2013 | Tim Brown
    Congressman Leonard Lance (R-NJ) has come out and demanded that Homeland Security Secretary Janet Napolitano explain why the Department of Homeland Security has been engaging in huge amounts of purchases of ammunition over the past year. Rep. Lance has called on Congress to get involved in ascertaining DHS’ stockpiling of ammunition which is enough to wage a 20 year plus war, which has most certainly caused a shortage in the public market. “I think Congress should ask the Department about both of those issues and I would like a full explanation as to why that has been done and I...
  • Hunting for the real 'Planet X'

    11/10/2012 2:03:36 PM PST · by BenLurkin · 3 replies
    Discovery News ^ | Friday, 9 November 2012 | Mark Thompson
    Through accurate measurements of Charon's orbit, the mass of Pluto could be deduced. Ultimately it showed that the 'ninth planet' couldn't possibly have affected the orbits of Uranus and Neptune as observations appeared to show. The renewed interest in Planet X was short lived as the Neptunian flyby by Voyager 2 in 1989 revealed its mass was less than thought. Reapplying this knowledge showed the outermost "ice giant" planets were behaving exactly as they should and the orbital perturbations were down to observational error. It seems the myth of Planet X had finally died. This could have been the end...
  • New Planet Found in Our Solar System?

    05/12/2012 3:44:38 AM PDT · by LibWhacker · 42 replies
    National Geographic ^ | 5/11/12 | Richard A. Lovett
    Odd orbits of remote objects hint at unseen world, new calculations suggest. An as yet undiscovered planet might be orbiting at the dark fringes of the solar system, according to new research.Too far out to be easily spotted by telescopes, the potential unseen planet appears to be making its presence felt by disturbing the orbits of so-called Kuiper belt objects, said Rodney Gomes, an astronomer at the National Observatory of Brazil in Rio de Janeiro. Kuiper belt objects are small icy bodies—including some dwarf planets—that lie beyond the orbit of Neptune. Once considered the ninth planet in our system, the...
  • Giant planet ejected from the solar system

    11/11/2011 5:16:23 AM PST · by decimon · 52 replies · 1+ views
    Southwest Research Institute ^ | November 10, 2011
    Boulder, Colo. — Nov. 10, 2011 — Just as an expert chess player sacrifices a piece to protect the queen, the solar system may have given up a giant planet and spared the Earth, according to an article recently published in The Astrophysical Journal Letters. "We have all sorts of clues about the early evolution of the solar system," says author Dr. David Nesvorny of the Southwest Research Institute. "They come from the analysis of the trans-Neptunian population of small bodies known as the Kuiper Belt, and from the lunar cratering record." These clues suggest that the orbits of giant...
  • Free-Floating Planets May Be More Common Than Stars

    05/18/2011 1:45:25 PM PDT · by Red Badger · 30 replies
    Science Daily ^ | 05-18-2011 | NASA's Jet Propulsion Laboratory, Pasadena,Calif.
    Astronomers, including a NASA-funded team member, have discovered a new class of Jupiter-sized planets floating alone in the dark of space, away from the light of a star. The team believes these lone worlds were probably ejected from developing planetary systems. The discovery is based on a joint Japan-New Zealand survey that scanned the center of the Milky Way galaxy during 2006 and 2007, revealing evidence for up to 10 free-floating planets roughly the mass of Jupiter. The isolated orbs, also known as orphan planets, are difficult to spot, and had gone undetected until now. The newfound planets are located...
  • Prepare for the Lord's Return! 5 Days in Heaven and Hell

    02/28/2011 10:25:53 AM PST · by Quix · 384 replies · 2+ views
    QUIX: SHORT EXCERPTS ARE OFFERED IN A SORT OF EXECUTIVE SUMMARY FIRST--THEN THE ENTIRE NARRATIVE AS AVAILABLE AT SPIRITLESSONS.COM I found this to be another anointed, Biblical narrative about a very convincing Heavenly visitation--actually, as usual, to hell, too. There's an item or 3 in this one to potentially trouble the RC's and Maryolators, . . . as well as some potentially troubling things for some Calvinists, however. Read at your own risk. Those exposed to The Truth are responsible before God for what they do about and with The Truth.On the other hand, ignorance affords no eternal protection....
  • Mystery Planet: Is a Rogue Giant Orbiting Our Sun?

    02/16/2011 4:51:26 PM PST · by BenLurkin · 62 replies
    Time ^ | Wednesday, Feb. 16, 2011 | Michael D. Lemonick
    "What we're really saying," he explains, "is that there's suggestive evidence there might be something out there." And if a new planet exists — something Matese is emphatically not claiming at this point — then the Wide-field Infrared Survey Explorer (WISE) satellite should already have an image of it stored somewhere in its enormous database. How suggestive the evidence actually is, though, depends on whom you ask. If you ask Ned Wright, a UCLA astrophysicist and WISE principal investigator, he'll tell you, "It's really kind of flimsy. It's there, but they don't have super data." So while the latest version...
  • Six Mysteries of Our Solar System: Its history raises a lot of questions

    02/06/2009 9:27:47 AM PST · by SunkenCiv · 44 replies · 1,253+ views
    Softpedia ^ | 29th of January 2009 | Tudor Vieru
    The 4.6-billion-year history of our solar system is nowhere crystal clear, astronomers admit. Instead, it's filled with questions as to the origin of some of its most remarkable feats. Here is a top 6 of these mysteries, as compiled by New Scientist... Another thing that concerns astronomers is the existence of Planet X, a hypothetical celestial body that supposedly circles our Sun on an orbit somewhere behind Pluto. Experts say that the distance it revolves around the Sun can only imply that the planet is frozen, but say that it could be as big as Mars, or even Earth. However,...
  • Niburu endorses Obama (their UFO didn't come to Alabama though)

    10/14/2008 11:55:40 PM PDT · by knighthawk · 6 replies · 627+ views
    Niburu ^ | October 15 2008
    ... How can this be? True change comes from within and the “change of guard” on the inner levels is complete. Each person will be guided in new directions for the betterment of themselves and mankind as it was always meant to be. This time in the Earth’s history will be remembered as Earth’s wake up call, the decision point for moving in a new direction which will bring about changes for the better in all areas of your life. Barack Obama is the right man for this moment in Earth’s history. He will be elected to the U.S. Presidency...
  • An Unknown Planet Orbits in the Outer Solar System

    08/05/2007 6:22:36 PM PDT · by SunkenCiv · 58 replies · 1,200+ views
    A theory is hereby proposed that an unknown mega-massive planet has, for billions of years, been orbiting at 77.2 AU from the sun -- within a 44 AU-wide, virtually empty Great Void that surrounds the Kuiper Belt (One AU = 93 million miles, the mean Earth-Sun distance). The Void is postulated to have been formed by strong gravitational attraction of the unknown planet having removed all CKBOs (Classical Kuiper Belt Objects) that had existed previously in the vicinity of the massive planet's huge orbit... The 77.2 AU distance from the sun of the proposed unknown planet is derived from a...
  • Newfound Data Could Solve NASA's Great Gravity Mystery

    03/28/2007 6:18:54 PM PDT · by KevinDavis · 10 replies · 459+ views
    space.com ^ | 03/27/07 | Tariq Malik
    NEW YORK – It’s been years since NASA last heard from either of its two Pioneer probes hurtling out of the solar system, but scientists are still debating the source of an odd force pushing against the outbound spacecraft. Dubbed the Pioneer Anomaly, the unexplained force appears to be acting against NASA’s identical Pioneer 10 and 11 probes, holding them back as they head away from the Sun
  • It's a Planet If We Say It's a Planet (NM Legislature restores Pluto's status)

    03/14/2007 11:21:11 AM PDT · by CedarDave · 25 replies · 338+ views
    The Albuquerque Journal ^ | March 14, 2007 | Bruce Daniels
    The International Astronomical Union may have demoted Pluto from its full-fledged status as a planet last year, designating it a "dwarf planet," but the state House of Representatives this week passed a joint memorial restoring Pluto to its full planetary glory whenever it passes over New Mexico, the Las Cruces Sun-News reported. Clyde Tombaugh, who helped create New Mexico State University's astronomy department and spent much of his life in Las Cruces, discovered photographic evidence of Pluto on Feb. 18, 1930, at the Lowell Observatory in Flagstaff, Ariz. Tombaugh's 94-year-old widow, Patsy Tombaugh, and his daughter, Annette Tombaugh-Sitze, who both...
  • Dwarf Santa yields giant insight into Kuiper Belt

    03/14/2007 8:41:56 PM PDT · by NormsRevenge · 14 replies · 395+ views
    AFP on Yahoo ^ | 3/14/07 | AFP
    PARIS (AFP) - Astronomers have pieced together the remnants of a mighty collision that smashed apart a planet-sized rock in the Kuiper Belt, on the far-flung fringes of the Solar System. First identified in the 1950s by Dutch-US skygazer Gerard Kuiper, the disk-shaped belt is believed to be populated by tens of thousands of icy bodies, encircling the Sun beyond the orbit of Neptune. A team led by Michael Brown of the California Institute of Technology (Caltech) took a close look at the belt's third largest object, 2003 EL61. Nicknamed "Santa" because the team spotted it at Christmas-time, 2003 EL61...
  • The Search for Distant Objects in the Solar System Using Spacewatch

    03/12/2007 11:38:09 AM PDT · by SunkenCiv · 5 replies · 245+ views
    Astronomical Journal ^ | volume 133 (2007) | Jeffrey A. Larsen et al
    We have completed a low-inclination ecliptic survey for distant and slow-moving bright objects in the outer solar system. This survey used data taken over 34 months by the University of Arizona's Spacewatch Project based at Steward Observatory, Kitt Peak. Spacewatch revisits the same sky area every three to seven nights in order to track cohorts of main-belt asteroids. This survey used a multiple-night detection scheme to extend our rate sensitivity to as low as 0.012 arcsec hr-1. When combined with our plate scale and flux sensitivity (V21), this survey was sensitive to Mars-sized objects out to 300 AU and Jupiter-sized...
  • Giant Kuiper Belt planetoid Sedna may have formed far beyond Pluto

    10/22/2005 1:05:39 PM PDT · by SunkenCiv · 23 replies · 1,263+ views
    Physics Org (http://www.physorg.com/) ^ | January 24, 2005 | Southwest Research Institute
    In a report published in the January 2005 issue of The Astronomical Journal, planetary scientist Dr. Alan Stern of the Space Science and Engineering Division at Southwest Research Institute (SwRI) shows Sedna could have formed far beyond the distance of Pluto... Stern's Sedna formation simulations assumed that Sedna's original orbit, while distant from the Sun, was circular. Astronomers agree that Sedna could not have formed in its present, eccentric orbit because such an orbit allows only violent collisions that prevent the growth of small bodies. Stern's simulations further assumed that the solar nebula -- the disk of material out of...
  • 2012: the piano-sized ‘New Horizons’ probe of NASA nears Pluto (will it find ET there?)

    01/10/2006 8:29:19 AM PST · by presidio9 · 28 replies · 727+ views
    India Daily ^ | Jan. 6, 2006
    Something spectacular may happen in 2012. New Horizons, a NASA space craft with a probe will travel at 26,700mph over four billion miles to Pluto. It will be in close proximity of Pluto by 2012. New Horizons probe will travel faster than any previous spacecraft on its journey to the planet farthest from the Sun, its moon Charon and the mysterious, icy Kuiper Belt. Relatively little is known about the ninth planet Pluto. It is an unknown zone of the solar system. Many scientists have started believing that Pluto will surprise all in the earth by 2012. There are fair...
  • Pluto Has Three Moons, Hubble Images Show

    10/31/2005 6:22:32 PM PST · by NormsRevenge · 101 replies · 1,880+ views
    ap on Yahoo ^ | 10/31/05 | Alex Dominguez - ap
    BALTIMORE - Pluto has three moons, not one, new images from the Hubble Space Telescope suggest. Pluto, discovered as the ninth planet in 1930, was thought to be alone until its moon Charon was spotted in 1978. The new moons, more than twice as far away as Charon and many times fainter, were spotted by Hubble in May. While the observations have to be confirmed, members of the team that discovered the satellites said Monday they felt confident about their data. "Pluto and Charon are not alone, they have two neighbors," said Hal Weaver of the Johns Hopkins University Applied...
  • 10 Planets? Why Not 11?

    08/23/2005 4:39:11 PM PDT · by neverdem · 38 replies · 1,939+ views
    NY Times ^ | August 23, 2005 | KENNETH CHANG
    PASADENA, Calif. - Between feedings and diaper changes of his newborn daughter, Michael E. Brown may yet find an 11th planet. Once conducted almost exclusively on cold, lonely nights, observational astronomy these days is often done under bright California sunshine. When he has a few spare minutes, Dr. Brown, a professor of planetary astronomy at the California Institute of Technology, downloads images taken during a previous night by a robotically driven telescope at Palomar Observatory 100 miles away. Each night, the telescope scans a different swath of sky, photographing each patch three times, spaced an hour and a half apart....
  • Pluto Could Lose Planet Status

    06/22/2006 4:11:12 AM PDT · by PatrickHenry · 177 replies · 3,351+ views
    PhysOrg.com ^ | 21 June 2006 | Staff
    At its conference this August, the International Astronomical Union (IAU) will make a decision that could see Pluto lose its status as a planet. For the first time, the organisation will be officially defining the word "planet", and it is causing much debate in the world of astronomy. There is only one thing that everyone seems to agree on: there are no longer nine planets in the Solar System. The debate has been brought to a head by the discovery of a potential 10th planet, temporarily named 2003 UB313 in January 2005. This new candidate planet is bigger than Pluto....
  • Pluto Might Have Rings

    02/23/2006 10:16:50 AM PST · by nickcarraway · 22 replies · 579+ views
    Space.com ^ | 22 February 2006 | Ker Than
    The two moons discovered around Pluto last year were likely formed from the same giant impact that created the planet’s much larger satellite, Charon, scientists say. The idea suggests that other Kuiper Belt Objects might also harbor multiple satellites and raises the possibility that Pluto is encircled by rings fashioned from debris ejected from the surface of the tiny moons. The two moons, called P1 and P2 for now, were discovered in May 2005 using the Hubble Space Telescope. Scientists now think the two moons are roughly 37 and 31 miles (60 and 50 km) in diameter. Charon has an...
  • X-Planets ( extrasolar planets, and the various planets X )

    06/09/2006 10:50:42 AM PDT · by SunkenCiv · 130 replies · 5,485+ views
    Our Tiny Little Minds ^ | various | self et al
    New Scientist for Dec 14, 2002, had a cover story for Planet X: The Hunt for Planet X by Heather Couperand Nigel HenbestJust over a year after the New Horizons' launch, it will... pick up enough velocity to reach Pluto, possibly as early as July 2015... In their new research, Melita and Brunini have explored three possible reasons for the Kuiper Cliff... The third possibility is that the region beyond was brushed clear by the gravity of Planet X... the KBO orbits they have investigated so far fit in best with the influence of a Planet X.
  • Scientists discover moon orbiting so-called 10th planet (nicknamed 'Xena')

    10/01/2005 5:10:46 PM PDT · by NormsRevenge · 34 replies · 1,190+ views
    ap on Monterey Herald ^ | 10/1/05 | Alicia Chang - ap
    LOS ANGELES - The astronomers who claim to have discovered the 10th planet in the solar system have made another intriguing announcement: it has a moon. While observing the new, so-called planet from Hawaii last month, a team of astronomers led by Michael Brown of the California Institute of Technology spotted a faint object trailing next to it. Because it was moving, astronomers ruled it was a moon and not a background star, which is stationary. The moon discovery is important because it can help scientists determine the new planet's mass. In July, Brown announced the discovery of an icy,...
  • Pioneer [gravitational] anomaly put to the test

    09/27/2004 11:38:32 AM PDT · by PatrickHenry · 50 replies · 2,127+ views
    Physics World ^ | September 2004 | Slava Turyshev and John Anderson
    The European Space Agency is considering a unique experiment that could explain strange gravitational phenomena in the outer solar system. Since 1998 astronomers have known that the space probes Pioneer 10 and Pioneer 11 are following trajectories that cannot be explained by conventional physics. Launched in 1972 and 1973, respectively, to explore the outer planets, the Pioneer craft are now at the edge of the solar system, with Pioneer 10 being some 86 astronomical units (about 13 billion kilometres) from the Sun. But they are not quite where they should be, based on the gravitational pull of the known bodies...
  • Death Spiral: Why Theorists Can't Make Solar Systems

    03/29/2006 10:21:37 AM PST · by SunkenCiv · 22 replies · 464+ views
    SPACE.com ^ | Tue March 28, 2006 | Ker Than
    For scientists who spend time thinking about how planets form, life would be simpler if gas giants like Jupiter and Saturn didn’t exist. According to the standard model of planet formation, called "core accretion," planets form over millions of years as enormous blocks of rock and ice smash together to form planetary embryos, called "protoplanets," and eventually full-fledged planets. Most scientists agree that core accretion is how terrestrial planets such as Earth and Mars were created, but the model can’t convincingly explain how gas giant planets like Jupiter and Saturn came to be. One major problem is that developing gas...