Oceans of Liquid Diamond May Exist On Neptune and Uranus
(PhysOrg.com) -- Scientist explains how it may be possible for the planets Neptune and Uranus to contain liquid diamond oceans.
Jan 18, 2010
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Jan 18, 2010
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Kepler announces 11 planetary systems hosting 26 planets
(PhysOrg.com) -- NASA's Kepler mission has discovered 11 new planetary systems hosting 26 confirmed planets. These discoveries nearly double the number of verified Kepler planets and triple the number of stars ...
Jan 26, 2012
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The Stars My Destination
The Voyager spacecraft are now in the outermost layer of the heliosphere, traveling toward interstellar space - the first man-made spacecraft to travel such a vast distance from Earth.
Nov 10, 2009
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Dwarf planet mysteries beckon to New Horizons
(PhysOrg.com) -- At this very moment one of the fastest spacecraft ever launched -- NASA's New Horizons -- is hurtling through the void at nearly one million miles per day. Launched in 2006, it has been in ...
Sep 05, 2011
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The Edges of the Solar System
(PhysOrg.com) -- The solar system does not end abruptly past the planets. Beyond the orbit of Neptune, the outermost planet (it orbits the sun at a distance of 30 AU, where one AU is the average distance of ...
May 07, 2010
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Fantastic Voyage
By travelling to the outer solar system, the two Voyager spacecraft allowed us to see amazing details of far-distant planets and moons.
Nov 02, 2009
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Computer simulation shows Solar System once had an extra planet
(PhysOrg.com) -- A new study published on arXiv.org shows that, based on computer simulations, Jupiter, Saturn, Uranus and Neptune may not have been the only gas giants in our solar system. According to David ...
Sep 22, 2011
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50 new exoplanets discovered by HARPS
Astronomers using ESO's world-leading exoplanet hunter HARPS have today announced a rich haul of more than 50 new exoplanets, including 16 super-Earths, one of which orbits at the edge of the habitable zone ...
Sep 12, 2011
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Coming to a solar system near you… super-Earth!
It is our general understanding of solar system composition that planets fall into two categories: gas giants like Jupiter, Saturn, Neptune and Uranus… and rocky bodies that support some type of atmosphere ...
Aug 08, 2011
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Cometary Impact on Neptune Two Centuries Ago
(PhysOrg.com) -- (PhysOrg.com) -- A comet may have hit the planet Neptune about two centuries ago. This is indicated by the distribution of carbon monoxide in the atmosphere of the gas giant that researchers ...
Jul 16, 2010
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Clocking Neptune's spin
(PhysOrg.com) -- By tracking atmospheric features on Neptune, a UA planetary scientist has accurately determined the planet's rotation, a feat that had not been previously achieved for any of the gas planets ...
Jun 29, 2011
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Study: Earth shares its orbit with tiny asteroid
(AP) -- Like a poodle on a leash, a tiny asteroid runs ahead of Earth on the planet's yearlong strolls around the sun, scientists report.
Jul 27, 2011
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Researchers determined huge pressures that melt diamond on planet Neptune
(PhysOrg.com) -- The enormous pressures needed to melt diamond to slush and then to a completely liquid state have been determined ten times more accurately by Sandia National Laboratories researchers than ...
Feb 18, 2009
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Asteroid found in gravitational 'dead zone'
There are places in space where the gravitational tug between a planet and the Sun balance out, allowing other smaller bodies to remain stable. These places are called Lagrangian points. So-called Trojan asteroids ...
Aug 12, 2010
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Planetrise: Astronomers spy two planets in tight quarters as they orbit a distant star
A research team led by astronomers at the University of Washington and Harvard University has discovered a bigger version of Earth locked in an orbital tug-of-war with a much larger, Neptune-sized planet as ...
Jun 21, 2012
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