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Keyword: xplanets

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  • Some Scientists Think SARS May Have Come from Outer Space

    05/22/2003 5:47:54 PM PDT · by TaxRelief · 207 replies · 880+ views
    LONDON (Reuters) ^ | May 22, 2003 | Patricia Reaney
    LONDON (Reuters) - Could SARS have come from outer space? Some scientists think so. Instead of jumping from an unknown animal host in southern China, a few researchers in Britain believe the virus that has baffled medical experts descended from the stratosphere. "I think it is a possibility that SARS came from space. It is a very strong possibility," Professor Chandra Wickramasinghe told Reuters. The director of the Cardiff Center for Astrobiology in Wales and a proponent of the theory that life on Earth originated from space, admits the theory defies conventional wisdom. But in a letter published in The...
  • Scientists say it is possible there is life on Jupiter's moon Europa

    06/26/2020 3:49:08 AM PDT · by Berlin_Freeper · 23 replies
    news.sky.com ^ | 25 June 2020 | SKY News
    The interior ocean in Jupiter's moon Europa may be able to sustain life, NASA scientists believe. Their work is based on computer simulations of the reservoirs below the ice-shell surface of Europa, one of the largest moons in the Solar System.
  • There should be billions of Earths out there. Why can’t we find them?

    06/24/2020 9:09:55 PM PDT · by RomanSoldier19 · 108 replies
    https://www.popsci.com ^ | June 24, 2020 | By Charlie Wood
    A new estimate suggests the Milky Way is home to six billion Earth-like planets. So far, we’ve found just one potential candidate. In 2009, the Kepler space telescope constantly watched over some 200,000 stars in our corner of the Milky Way. It was looking for where life might exist—by pinpointing small, rocky planets in the temperate zones of warm, yellow suns, and figuring out just how special Earth is in the grand scheme of things. While the mission revolutionized the study of exoplanets, those main objectives went largely unfulfilled. A mechanical failure cut short Kepler’s initial survey in 2013. Astronomers...
  • Scientists estimate the number of intelligent alien civilizations in the galaxy

    06/15/2020 6:38:28 PM PDT · by BenLurkin · 76 replies
    CNET ^ | June 15, 2020 3:53 p.m. PT | Jackson Ryan
    A new study... provides an updated estimate of the likely number of alien civilizations that could exist in the Milky Way. The analysis...starts with revising the Drake equation... "The classic method for estimating the number of intelligent civilizations relies on making guesses of values relating to life," said Westby in a press release. "Our new study simplifies these assumptions using new data, giving us a solid estimate of the number of civilizations in our Galaxy." Westby and Conselice...built a key assumption in to their estimate: Life on another planet will arise in a similar way to how it did on...
  • Ingredients for life appear in stellar nurseries long before stars are born

    06/13/2020 7:52:00 PM PDT · by RomanSoldier19 · 30 replies
    phys ^ | JUNE 12, 2020 | by Daniel Stolte, University of Arizona
    Complex organic molecules that could serve as building blocks for life are more ubiquitous than previously thought in cold clouds of gas and dust that give birth to stars and planets, according to astronomers at the University of Arizona Steward Observatory. These molecules also appear much earlier than conventional wisdom suggested, hundreds of thousands of years before stars actually begin to form, the researchers found. Published in The Astrophysical Journal, the results challenge existing theories that require an environment heated by proto-stars—stars in the making—for complex organic molecules to become observable. The study is the first to look for the...
  • 'Mirror Image' of Sun & Earth Reportedly Found in the Depths of Space

    06/08/2020 10:01:44 AM PDT · by Red Badger · 32 replies
    Sputniknews.com ^ | 19:09 GMT 07.06.2020 | Staff
    The scientists warned that they still require more data to confirm that their discovery is indeed a planet and not some “statistical fluke or a systematic measurement error”. A massive exoplanet that orbits a star located some 3,000 light years away from our world was discovered by scientists who suggest that it may be potentially habitable, Fox News reports citing a statement issued by the Max Planck Institute. According to the media outlet, while the planet, KOI-456.4, is "less that twice the size of Earth", orbits a "sun-like" star, making the two practically a "mirror image" of our own planet...
  • Researchers observe protons 'playing hopscotch' in a high-pressure form of ice

    05/26/2020 3:15:41 PM PDT · by BenLurkin · 16 replies
    Phys.org ^ | 05/25/2020
    An international team of researchers from University College Dublin (UCD) and University of Saskatchewan, Canada, have observed 'proton-hopping' movement in a high-pressure form of ice (Ice VII lattices). Ordinary water ice is known as Ice I, while Ice VII is a cubic crystalline form of ice which can be formed from liquid water above 3 GPa (30,000 atmospheres) by lowering its temperature to room temperature, or by decompressing heavy water (D2O) Ice VI below 95 K. Ice VII has a simple structure of two inter-penetrating, and effectively independent, cubic-ice sub-lattices, and is stable across a wide-ranging region above 2 GPa....
  • Hot Super-Earth Discovered Orbiting Ancient Star

    05/18/2020 7:44:45 PM PDT · by SunkenCiv · 15 replies
    Science News ^ | May 18, 2020 | Natali Anderson
    An international team of astronomers has discovered a close-in super-Earth exoplanet in the HD 164922 planetary system. HD 164922 is a bright G9-type star located approximately 72 light-years away in the constellation of Hercules. Also known as Gliese 9613 or LHS 3353, the star is slightly smaller and less massive than the Sun and is 9.6 billion years old. HD 164922 is known to host two massive planets: the temperate sub-Neptune HD 164922c and the Saturn-mass planet HD 164922b in a wide orbit. The sub-Neptune is 12.9 times more massive than Earth, and orbits the parent star once every 75.8...
  • Astronomers Find a Beautiful Six-Planet System in Almost Perfect Orbital Harmony

    05/18/2020 7:40:39 PM PDT · by SunkenCiv · 24 replies
    Science Alert ^ | April 20, 2020 | Michelle Starr
    By now, we have discovered hundreds of stars with multiple planets orbiting them scattered throughout the galaxy. Each one is unique, but a system orbiting the star HD 158259, 88 light-years away, is truly special. The star itself is about the same mass and a little larger than the Sun - a minority in our exoplanet hunts. It's orbited by six planets: a super-Earth and five mini-Neptunes... These two bodies are in what is described as a 2:3 orbital resonance. For every two laps Pluto makes around the Sun, Neptune makes three. It's like bars of music being played simultaneously,...
  • Astronomers Make Incredibly Rare Detection of Earth-Like Planet 25,000 Light-Years Away

    05/18/2020 5:48:33 PM PDT · by SunkenCiv · 43 replies
    Science Alert ^ | May 12, 2020 | Michelle Starr
    There may be multitudes of Earth-like planets sprinkled throughout the Milky Way galaxy, but they are not so easy to find. To date, only around a third of the over 4,000 exoplanets found and confirmed are rocky -- and most of those are within a few thousand light-years of Earth... So the announcement of a new rocky exoplanet is always exciting -- but this particular newly discovered rocky exoplanet is even more exciting yet... it's a whopping 24,722.65 light-years away from us -- which could make it the most distant Milky Way exoplanet discovered yet. It's so distant, it's close...
  • Giant, scorching-hot alien planet has yellow skies [Rayleigh scattering]

    05/09/2020 10:40:44 AM PDT · by SunkenCiv · 27 replies
    Space dot com ^ | May 7, 2020 | Mike Wall
    We can now add atmospheric craziness to WASP-79b's already substantial exotic appeal. The gas-giant exoplanet, which lies about 780 light-years from Earth, circles extremely close to its bright host star, completing one orbit every 3.7 Earth days. That proximity makes WASP-79b scorching hot, with an average temperature around 3,000 degrees Fahrenheit (1,650 degrees Celsius), NASA officials said. All that heat puffs up WASP-79b substantially, making it one of the largest alien worlds ever observed. Although WASP-79b is just 85% as massive as Jupiter, it's 1.7 times wider than our solar system's biggest planet. Then there's the alien world's air, which...
  • Are There Aliens Already on Earth?

    02/20/2006 5:28:16 PM PST · by KevinDavis · 141 replies · 3,257+ views
    Conspiracy theorists will readily tell you that the U.S. military is hiding alien corpses in a secret facility in the Nevada desert. But paleontologist and University of Washington geology professor Peter Ward thinks that scientists should be looking for a different type of alien life on earth: alien microbes. Ward is the author of several popular books about astrobiology, including the controversial Rare Earth, co-authored with Donald Brownlee. In his latest book, Life as We Do Not Know It, Ward addresses an issue often avoided by astrobiologists. Although all known life on Earth has a similar DNA-based chemistry, life found...
  • Exoplanet that vanished may have been a giant dust cloud created by a titanic collision between two icy asteroids

    04/21/2020 1:12:45 PM PDT · by SunkenCiv · 32 replies
    Daily Mail Online ^ | Tuesday, April 21, 2020 | Ryan Morrison
    The first planet to be discovered outside our solar system isn't a planet at all, and may be a giant dust cloud created by the collision of two icy asteroids, a study finds. Twelve years ago, astronomers spotted what they thought was a Saturn-like planet in the Fomalhaut star system 25 light years from Earth, and called it Fomalhaut b. But now researchers from the University of Arizona claim the visible and infrared images of the 'planet' captured by the Hubble Space Telescope were actually of a cosmic collision. The team studied the images in more detail and found they...
  • Bizarre life-forms found thriving in ancient rocks beneath the seafloor

    04/04/2020 1:19:18 PM PDT · by RomanSoldier19 · 18 replies
    nationalgeographic ^ | APRIL 2, 2020 | BY ROBIN GEORGE ANDREWS
    IN 2013, SCIENTISTS were stunned to find microbes thriving deep inside volcanic rocks beneath the seafloor off the Pacific Northwest, buried under more than 870 feet of sediment. The rocks were on the flank of the volcanic rift where they were born, and they were still young and hot enough to drive intense chemical reactions with the seawater, from which the microbes derived their energy. Now, however, another team of researchers have discovered living cells inside exceedingly old, cold oceanic crust in the middle of the South Pacific. It isn’t yet clear how these new microbes are managing to survive—and...
  • Over a Hundred New Large Objects Found in the Kuiper Belt

    03/13/2020 10:29:53 PM PDT · by BenLurkin · 30 replies
    A new paper describes how the researchers connected the moving dots to find the new TNOs, and also says this new approach could help look for the hypothetical Planet Nine and other undiscovered worlds. The Dark Energy Survey (DES) is designed to probe the origin of the accelerating universe and help uncover the nature of dark energy by measuring the 14-billion-year history of cosmic expansion with high precision. It studies galaxies and supernovas and precisely tracks their movements. This survey has been active since 2013, using the 4-meter Blanco Telescope located at Cerro Tololo Inter-American Observatory (CTIO) in Chile. The...
  • The Discovery of Uranus

    03/13/2020 6:34:55 PM PDT · by Rebelbase · 57 replies
    Youtube ^ | 3/13/20 | The History Guy
    In 1781, an oboe player discovered the first new planet since antiquity. The History Guy recalls a solar system shattering event that represented an era of scientific inquiry. It is history that deserves to be remembered.
  • Weird new star type pulses on only one side

    03/13/2020 10:43:23 PM PDT · by BenLurkin · 29 replies
    Space.com ^ | Elizabeth Howell
    Astronomers have finally found something they have spent decades searching for: a teardrop-shaped star that pulsates on only one side. Citizen scientists helped the discovery team find the strangely lopsided star, which is known as HD74423, in data gathered by NASA's Transiting Exoplanet Survey Satellite (TESS). The star is about 1.7 times the mass of Earth's sun, and scientists determined that HD74423's weird pulsing is caused by a second, smaller star. "I've been looking for a star like this for nearly 40 years, and now we have finally found one," study co-author Don Kurtz, an astronomer at the University of...
  • Something strange is going on with the North Star

    03/11/2020 6:44:59 AM PDT · by BenLurkin · 25 replies
    Live Science ^ | 03/11/2020 | Rafi Lezter
    The problem with Polaris is that no one can agree on how big or distant it is. Astrophysicists have a few ways to calculate the mass, age and distance of a star like Polaris. One method is a stellar evolution model...Researchers can study the brightness, color and rate of pulsation of the star and use that data to figure out how big and bright it is and what stage of life it's in. These models are especially precise for cepheids, because their rate of pulsing is directly related to their luminosity, or brightness. That makes it easy to calculate the...
  • SETI@home is shutting down as they have analyzed all the data that they need. [03/31/2020]

    03/05/2020 1:33:11 PM PST · by algore · 36 replies
    BleepingComputer ^ | 03/03/2020 | Lawrence Abrams
    SETI@home is shutting down. In an announcement posted yesterday, the project stated that they will no longer send data to SETI@home clients starting on March 31st, 2020 as they have reached a "point of diminishing returns" and have analyzed all the data that they need.
  • Boom! Scientists spot the biggest known explosion in the universe

    02/28/2020 1:05:57 PM PST · by BulletBobCo · 52 replies
    Space ^ | Feb 27, 2020 | Mike Wall
    Astronomers have spotted a cosmic blast that dwarfs all others. A gargantuan explosion tore through the heart of a distant galaxy cluster, releasing about five times more energy than the previous record holder, a new study reports. "In some ways, this blast is similar to how the eruption of Mt. St. Helens in 1980 ripped off the top of the mountain," study lead author Simona Giacintucci, of the Naval Research Laboratory in Washington, D.C., said in a statement. "A key difference is that you could fit 15 Milky Way galaxies in a row into the crater this eruption punched into...