Space
- Planetary Science
Rarin’ to go
After a day’s delay, the robotic arm on the Mars Phoenix Lander is free of its shackles and is preparing to dig for ice.
- Planetary Science
More than a pinch
Water believed to flow on the Red Planet would have been too salty to foster life, scientists suggest.
- Space
Phoenix gets ready for work
After a day’s delay, scientists successfully sent up commands to unstow the robotic arm of NASA’s Phoenix Mars Lander.
- Chemistry
Kavli Awardees Named
Norwegian Academy awards three novel and hefty prizes to three teams of scientists.
- Space
Martian dig delayed
The Phoenix Mars Lander was in good health after its safe May 25 landing on the Red Planet, but a communication problem delayed plans to unlatch its robotic digging arm.
- Planetary Science
See how it lands
A camera on a Mars-orbiting spacecraft caught an image of NASA's Phoenix Mars Lander suspended from its parachute just before it descended onto the Red Planet’s northern plains on May 25.
- Planetary Science
Touchdown! Phoenix lands on Mars
The first close-up color images of the northern arctic circle on the Red Planet were recorded by the Mars Phoenix Lander spacecraft only a few hours after its flawless descent at 7:38 p.m. EDT, May 25. The detailed images suggest ice lies beneath the hard soil.
- Space
Many stars, many planets
A new study reveals that as many as 30 percent of sunlike stars have close-in, relatively small planets — only 4 to 30 times as heavy as Earth.
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- Space
BOOK REVIEW | Einstein and Oppenheimer: The Meaning of Genius by Silvan S. Schweber
Review by Tom Siegfried.
- Astronomy
When Worlds Collide
Parallel universes aren’t supposed to be observable, but a cosmic crash might leave a visible sign of their existence.
- Space
Martian sands
Sandy soil on the Red Planet hints at an ancient mix of volcanic activity and water, a potent breeding ground for life.
