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Hubble Finds 'Tenth Planet' Is Slightly Larger Than Pluto
April 17, 2006 — NASA's Hubble Space Telescope has resolved the "tenth planet," nicknamed "Xena," for the first time and has found that it is only just a little larger than Pluto. Though previous ground-based ... > full story -
Researchers Describe Discovery Of Pluto's New Moons
February 23, 2006 — Researchers at the Johns Hopkins University Applied Physics Laboratory and the Southwest Research Institute describe the discovery of two new moons around Pluto -- a finding that made the ninth ... > full story -
NASA's Spitzer Uncovers Hints Of Mega Solar Systems
February 8, 2006 — NASA's Spitzer Space Telescope has identified two huge "hypergiant" stars circled by monstrous disks of what might be planet-forming dust. The findings surprised astronomers because stars as big as ... > full story -
Kuiper Belt Moons Are Starting To Seem Typical
January 11, 2006 — In the not-too-distant past, the planet Pluto was thought to be an odd bird in the outer reaches of the solar system because it has a moon, Charon, that was formed much like Earth's own moon was ... > full story -
Measuring Charon: Astronomers Seize Rare Opportunity
January 5, 2006 — Being in the right place at the right time gave a group of Massachusetts research astronomers a unique opportunity to study Pluto's largest moon Charon. The resulting measurements, to unprecedented ... > full story -
University Of Colorado Student-Built Instrument Set To Launch On Pluto Mission
December 28, 2005 — The University of Colorado at Boulder's long heritage with NASA planetary missions will continue Jan. 17 with the launch of a student space dust instrument on the New Horizons Mission to Pluto from ... > full story -
Hubble Reveals Possible New Moons Around Pluto
October 31, 2005 — Using NASA's Hubble Space Telescope to view the ninth planet in our solar system, astronomers discovered Pluto may have not one, but three moons. If confirmed, the discovery of the two new moons ... > full story -
Tenth Planet Has A Moon
October 3, 2005 — The newly discovered 10th planet, 2003 UB313, is looking more and more like one of the solar system's major players. It has the heft of a real planet (latest estimates put it at about 20 percent ... > full story -
Scientists Discover Solar System's Tenth Planet -- Bigger Than Pluto
July 29, 2005 — A planet larger than Pluto has been discovered in the outlying regions of the solar system. The planet was discovered using the Samuel Oschin Telescope at Palomar Observatory near San Diego, Calif. ... > full story -
NASA's Hubble Chases Unruly Planet
June 22, 2005 — A detailed image from NASA's Hubble Space Telescope offers the strongest evidence yet that an unruly and unseen planet may be gravitationally tugging on a dusty ring around the nearby star Fomalhaut ... > full story
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