Planetary Science
- 			 Planetary Science Planetary ScienceSaturn’s rings may not be as young as they lookSaturn's rings might be more massive, and thus older, than researchers had believed. By Ron Cowen
- 			 Planetary Science Planetary ScienceRacing against the Martian winterWith solid findings under its belt and the Martian summer waning, the Phoenix Mars lander perseveres in its study of the soil and sky of the planet’s arctic plain. 
- 			 Planetary Science Planetary ScienceCassini finds liquid ethane on TitanAfter years of speculation, planetary scientists have now confirmed that Titan has at least one lake made of liquid ethane. By Ron Cowen
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- 			 Planetary Science Planetary ScienceLunar liquidA new analysis of moon rocks has revealed that the moon isn’t as bone dry as researchers had thought, whetting the appetite of scientists who seek a deeper understanding of how Earth’s only natural satellite arose and evolved. By Ron Cowen
- 			 Astronomy AstronomyImpact may have transformed MarsThree teams suggest that a huge object slammed into Mars, giving the planet an unusually dualistic topography. 
- 			 Planetary Science Planetary ScienceSurprise found in comet dustScientists find an odd mineral that could offer clues to the solar system's origins. 
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- 			 Planetary Science Planetary ScienceShake, shake, shakeInstrument succeeds in capturing first soil sample, allowing Mars Phoenix Lander team to begin scientific studies. 
- 			 Planetary Science Planetary ScienceColliding moonletsNew photos of collisions in one of Saturn’s rings provide a local lab for understanding the interactions that might shape young solar system formation. 
- 			 Planetary Science Planetary ScienceSmall exoplanet discoveredAstronomers have discovered the smallest planet known that is beyond the solar system and orbits an ordinary parent body. By Ron Cowen
- 			 Space SpaceMaking an impressionIn its seventh day after successfully landing on the Red Planet, the Phoenix Lander digs its first trench and is ready to start its ice-hunting.