07 August 2008, 06:43 AM ET
The glint of starlight from oceans might show water on alien planets.
25 July 2008, 02:57 PM ET
Future moon missions raise concern about safeguarding lunar heritage sites.
24 July 2008, 06:43 AM ET
Researchers discovered unique microbes deep beneath the Earth's surface.
23 July 2008, 08:00 PM ET
America's first woman astronaut talks climate change with the help of satellite imagery. Credit: NASA/JPL
21 July 2008, 06:40 AM ET
Solar systems with Jupiter-like planets may be rare in the universe.
18 July 2008, 11:52 AM ET
NASA's Deep Impact spacecraft makes movie of moon transiting Earth.
18 July 2008, 12:51 AM ET
The best meteor show of the summer comes during the second week of August.
17 July 2008, 06:48 AM ET
Bucknell professors predicted an important planetary observation.
11 July 2008, 12:11 AM ET
July holds some great opportunities to see the International Space Station.
10 July 2008, 06:34 AM ET
Could aliens be tuning into the most powerful radio transmitter on Earth?
08 July 2008, 07:00 AM ET
Earth has liquid water and plate tectonics, but its most special feature might just be us.
01 July 2008, 12:16 AM ET
Earth emits an ear-piercing series of chirps and whistles.
30 June 2008, 11:05 PM ET
Returned space station astronaut Garrett Reisman is readapting to life on Earth.
30 June 2008, 05:20 PM ET
Opportunity rover wheels closer to a cliff wall of Victoria Crater.
27 June 2008, 07:00 AM ET
Two bright planets approach each other during the next couple of weeks.
26 June 2008, 06:55 AM ET
Material from Earth’s first billion years may remain in moon meteorites.
19 June 2008, 06:44 AM ET
Almost weekly, there's an announcement of another extrasolar planet.
12 June 2008, 07:07 AM ET
New ground tests will help Phoenix detect signs of life on Mars.
12 June 2008, 07:06 AM ET
Imagine if ET's could detect Earth's transits of the sun.
11 June 2008, 09:28 AM ET
Current sunspot downtime unlikely to lead to new ice age.
09 June 2008, 07:00 AM ET
It's possible to detect a moon orbiting a known exoplanet, says astrophysicist.
04 June 2008, 02:20 PM ET
Astronomers concoct recipe for a telescope mirror using lunar dust.
30 May 2008, 06:49 AM ET
The most important sky map line is the ecliptic, the sun's apparent path.
26 May 2008, 10:14 AM ET
DigitalGlobe's $250 million IPO invites comparison to competitor GeoEye
22 May 2008, 02:01 PM ET
A megaflood may have scoured an Earth canyon which looks like Mars canyons.
22 May 2008, 06:46 AM ET
Geologist John Marshall will apply his skills to the dust on Mars.
18 May 2008, 08:00 PM ET
Real-life spinoffs of Europe's space technology down on Earth.
15 May 2008, 06:41 AM ET
Asteroid impacts could help spread life throughout the universe.
09 May 2008, 02:00 AM ET
Planning is under way to reinvigorate a Mars sample return mission.
08 May 2008, 12:29 AM ET
Signs of life on Mars can be spotted using instruments on robotic probes.
05 May 2008, 07:00 AM ET
Chinese satellites will cover Asia by 2010, but frequencies aren't set.
01 May 2008, 07:49 AM ET
A river in Spain may show how signs of life could be preserved on Mars.
29 April 2008, 06:42 AM ET
Wind tunnels experiments show sand grains can be lofted on Mars to create dunes.
25 April 2008, 06:45 AM ET
Arcturus sparkles with a golden topaz hue as darkness falls this week.
24 April 2008, 06:51 AM ET
Ocean floor sedimentary rocks unravel climate change during the Jurassic.
21 April 2008, 03:33 PM ET
Station astronauts drink in the view of their home planet from orbit.