Phoebe: Cassini’s First Target
Now only three weeks from entering orbit around Saturn, it's time for Cassini to begin making some close up observations.…
New Horizons Mission Will Measure the Solar Wind out at Pluto
Scheduled for launch in 2006, the New Horizons mission will finally get a close up view of Pluto, the only…
New Simulation Improves Ideas of Galaxy Formation
A new simulation of galaxy formation developed at the University of Chicago does a much better job of predicting what…
How Deforestation in Brazil is Affecting Local Climate
Satellites are giving scientists a bird's eye view of deforestation in the Brazilian rainforest, and the impact this is happening…
Opportunity Checks the Edge of the Crater
Opportunity has been gingerly testing the edge of Endurance Crater to make sure it's stable enough for the rover to…
Early Earth was Warm, Despite Less Energy From the Sun
When life first arose on the Earth, 4.6 billion years ago, the Sun was putting out 20-25% less energy -…
Opportunity’s Exit Strategy
NASA's Opportunity rover is continuing to circle the rocky rim of Endurance Crater, searching for the right place to try…
Venus Returns, Right on Schedule
Sky watchers from around the globe had the opportunity to witness a rare transit of Venus across the surface of…
Resources for the Venus Transit
If you're lucky, you've got a front row view of Venus as it transits across the face of the Sun.…
Gas Clouds in the Whirlpool Galaxy
Astronomers studying the famous Whirlpool Galaxy (M51) have discovered important clues which support theories of how spiral arms can last…