28 January 2012, 07:00 AM ET
A waxing crescent moon will pay a visit to Jupiter in the evening sky.
27 January 2012, 09:18 PM ET
See images of the moon and Venus close together.
27 January 2012, 10:23 AM ET
The asteroid 2012 BX34 came within 36,750 miles of Earth.
26 January 2012, 04:31 PM ET
Asteroid 2012 BX34 won't hit us, experts say.
26 January 2012, 02:01 PM ET
Researchers are still unclear about what might have powered this ancient lunar magnetic field.
24 January 2012, 03:33 PM ET
A celestial convergence is set to take place this week.
24 January 2012, 07:00 AM ET
Dunes on the huge moon vary according to latitude and elevation.
20 January 2012, 03:12 PM ET
China targets 2013 for launch of a lunar landing mission.
19 January 2012, 02:34 PM ET
Russia is in discussions with NASA and the European Space Agency, according to news reports.
19 January 2012, 01:35 PM ET
New Horizons is zooming toward a close encounter with Pluto in 2015.
19 January 2012, 10:28 AM ET
A NASA satellite found ice where the sun doesn't shine.
17 January 2012, 01:10 PM ET
The names were suggested by students competing in a nationwide NASA contest.
17 January 2012, 09:45 AM ET
The new names for the twin Grail moon probes were selected from a nationwide student contest.
16 January 2012, 11:19 AM ET
See amazing astronomy images created by French-born artist Etienne Leopold Trouvelot in the 1800s.
11 January 2012, 06:00 AM ET
Retired NASA spaceflyer Steven Hawley also discussed his own experiences.
10 January 2012, 11:10 AM ET
NASA is looking at missions that would get humanity get out of low-Earth orbit.
07 January 2012, 08:00 AM ET
From a dazzling meteor shower to a smoky nebula with a bright heart, it's been a remarkable week for space photography.
06 January 2012, 03:41 PM ET
Multiple images of the International Space Station flying over the Houston area have been combined into one composite image in this space wallpaper.
04 January 2012, 07:00 AM ET
The huge crater is visible with the naked eye.
03 January 2012, 12:39 PM ET
The Lunar Reconnaissance Orbiter has been capturing imagery of the crater in the tail end of 2011 and the west wall is featured. This will provide researchers with opportunities to learn more about lunar rocks and geology of the Moon.
02 January 2012, 07:00 AM ET
Scientists are testing technologies to one day explore the lakes of Titan.
01 January 2012, 05:05 PM ET
The Grail-A spacecraft is orbiting the moon, and its twin Grail-B has joined it today.
31 December 2011, 11:46 PM ET
NASA's twin Grail gravity-mapping probes
31 December 2011, 04:22 PM ET
The Grail-A spacecraft was captured by the moon's gravity on Saturday afternoon.
31 December 2011, 07:57 AM ET
NASA's twin GRAIL satellites will orbit the moon and measure its gravity field in greater detail than ever before.
31 December 2011, 12:58 AM ET
NASA's Grail mission will map the moon's gravity like never before.
30 December 2011, 06:32 PM ET
See photos of NASA's Grail moon twins, two spacecraft to map the lunar gravity like never before.
30 December 2011, 07:00 AM ET
The Grail spacecraft will start orbiting Earth's nearest neighbor on New Year's Eve and Day.
30 December 2011, 07:00 AM ET
Researchers headed to Chile to test technologies for a possible mission to Saturn's moon Titan.
28 December 2011, 03:09 PM ET
The Grail spacecraft will enter orbit around Earth's nearest neighbor on Saturday and Sunday.
26 December 2011, 07:00 AM ET
Skywatcher takes stunning photo of the smallest full moon of the year.
13 December 2011, 04:28 PM ET
The Republican front-runner said he's proud of the idea.
10 December 2011, 12:01 AM ET
After today, skywatchers will have to wait until 2014 for the next total lunar eclipse.
09 December 2011, 09:22 AM ET
An instrument aboard the Lunar Reconnaissance Orbiter (LRO) will gauge temperatures on the moon while it's in the Earth's shadow on December 10th, 2011. Size and density of rocks can be extrapolated from the results.
08 December 2011, 10:56 AM ET
Intense solar storms can strip material off the surface of the moon like a sandblaster, a new study finds.
02 December 2011, 10:40 AM ET
This partial eclipse was the first of four to occur in 2011 and it’s rare to see so many within the same year.