Keyword: planetx

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  • Did the Mysterious 'Planet Nine' Tilt the Solar System?

    10/19/2016 8:18:19 PM PDT · by BenLurkin · 14 replies
    Space.com ^ | October 19, 2016 01:15pm ET | Charles Q. Choi,
    In January, astronomers revealed evidence for the potential existence of another planet in the solar system. Researchers suggest that if this world — dubbed Planet Nine — exists, it could be about 10 times Earth's mass and orbit the sun at a distance about 500 times the distance from the Earth to the sun. Previous research suggested that Planet Nine would possess a highly tilted orbit compared with the relatively thin, flat zone in which the eight official planets circle the sun. This led scientists to investigate whether Planet Nine's slant might help explain other tilting seen elsewhere in the...
  • NASA shuts down live International Space Station feed as 'mysterious UFO enters Earth's atmosphere'

    07/13/2016 6:18:18 AM PDT · by Red Badger · 94 replies
    Mirror UK ^ | Updated 13:17, 13 Jul 2016 | By Elle Griffiths
    The incident caused speculation online - and is not the first time NASA have been accused of tampering with the feed. Trending Theresa May Pokemon GO Dallas police shooting Weather Angela Eagle Alton Sterling Technology Money Travel Fashion Mums Home News Weird News UFOs NASA shuts down live International Space Station feed as 'mysterious UFO enters Earth's atmosphere' 22:16, 12 Jul 2016 Updated 13:17, 13 Jul 2016 By Elle Griffiths The incident caused speculation online - and is not the first time NASA have been accused of tampering with the feed 2602 shares 227 comments Play 1:31 / 1:31 Fullscreen...
  • 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...