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Faraway Eris Is Pluto's Twin
October 26, 2011 — Astronomers have measured the diameter of the dwarf planet Eris by catching it as it passed in front of a faint star. This was seen by telescopes in Chile, including the TRAPPIST telescope at the ... > full story -
NASA's Spitzer Detects Comet Storm in Nearby Solar System
October 19, 2011 — NASA's Spitzer Space Telescope has detected signs of icy bodies raining down in an alien solar system. The downpour resembles our own solar system several billion years ago during a period known as ... > full story -
Stardust Discovered in Far-Off Planetary Systems
September 29, 2011 — Searching for extra-solar planets -- which are planets outside of our solar system -- is very popular these days. About 700 planets are known at the moment, a number that is continuously rising due ... > full story -
Astronomers Find Ice and Possibly Methane on Snow White, a Distant Dwarf Planet
August 22, 2011 — Astronomers have discovered that the dwarf planet 2007 OR10 -- nicknamed Snow White -- is an icy world, with about half its surface covered in water ice that once flowed from ancient, slush-spewing ... > full story -
NASA's Hubble Discovers Another Moon Around Pluto
July 20, 2011 — Astronomers using the Hubble Space Telescope discovered a fourth moon orbiting the icy dwarf planet Pluto. The tiny, new satellite -- temporarily designated P4 -- was uncovered in a Hubble survey ... > full story -
Dwarf Planet Haumea Shines With Crystalline Ice
May 12, 2011 — The fifth dwarf planet of the solar system, Haumea, and at least one of its two satellites, are covered in crystalline water-ice due to the tidal forces between them and the heat of radiogenic ... > full story -
Astronomers Can Tune in to Radio Auroras to Find Exoplanets
April 18, 2011 — Detecting exoplanets that orbit at large distances from their star remains a challenge for planet hunters. Now, scientists have shown that emissions from the radio aurora of planets like Jupiter ... > full story -
New Telescope Is Exploring Solar System 'Outback'
January 13, 2011 — In the outer reaches of our solar system lies a mysterious region far more remote and difficult to explore than the Australian outback. It remains the only part of our solar system not visited by ... > full story -
Neptune Could Not Have Knocked Planetoids in Cold Classical Kuiper Belt to Edge of Solar System
October 6, 2010 — New research is challenging popular theory about how part of our solar system formed. Contrary to popular belief, new evidence suggests the planet Neptune can't have knocked a collection of ... > full story -
Planet-Like Object Found Circling a Brown Dwarf
April 9, 2010 — As our telescopes grow more powerful, astronomers are uncovering objects that defy conventional wisdom. The latest example is the discovery of a planet-like object circling a brown dwarf. It's the ... > full story
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