10 September 2011, 12:14 AM ET
NASA will try launching its twin Grail lunar probes again tomorrow, after delays.
08 September 2011, 11:43 PM ET
The delay is the second in two days and allows time to study propulsion system data.
08 September 2011, 11:33 AM ET
This week’s waxing gibbous moon is well placed for observation.
08 September 2011, 08:30 AM ET
Windy weather has delayed the launch of the twin Grail spacecraft on NASA's mission to map the moon's gravity.
07 September 2011, 06:09 PM ET
NASA's twin Grail lunar probes are slated to launch Sept. 8 on a mission to map the moon's gravity.
07 September 2011, 12:02 PM ET
If you want to get to the moon, it's best to follow NASA's Apollo plan.
06 September 2011, 11:55 AM ET
The Lunar Reconnaissance Orbiter has captured new images of Apollo 12, 14, and 17's landing sites showing the lunar rover, tire tracks, descent stages and experiments, providing a new challenge for Moon-landing hoax believers.
29 August 2011, 11:05 AM ET
On Saturday, August 27, 2011, Ron Garan pointed an HD camera out a window of the International Space Station Cupola for this space wallpaper.
08 August 2011, 05:25 PM ET
Skywatching events in August 2011, including the Perseid meteor shower and the comet Elenin.
03 August 2011, 05:22 PM ET
On Sunday, July 31, 2011, when Expedition 28 astronaut Ron Garan aboard the International Space Station looked out his window, this is what he saw: the moon in this space wallpaper.
29 July 2011, 12:39 PM ET
Is this strange impact crater the result of a spacecraft that crash landed on the moon decades ago?
29 July 2011, 07:00 AM ET
Earth's moon may be unique throughout the universe.
26 July 2011, 03:03 PM ET
Despite its huge size, the giant asteroid Pallas is only visible in telescopes this week.
13 July 2011, 12:18 PM ET
As Prometheus tangos past, particles in Saturn's outermost "F-Ring" resonate into long-patterned movements induced by the small moon's gravity. This animation shows glimpses of the effects over a 60+ day period.
08 July 2011, 05:10 PM ET
While private commercial companies rush to get their spaceship designs done and "human-rated," NASA is forging ahead with its own next generation capsule: the Orion Multi-Purpose Crew Vehicle. Here's a look inside.
01 July 2011, 06:33 PM ET
Scientists still aren't sure how the moon came to be, but they believe it is one of the keys to life evolving on Earth.
01 July 2011, 12:46 PM ET
Skywatching events in July 2011, including two new moons and a partial solar eclipse.
27 June 2011, 01:52 PM ET
Asteroid 2011MD was captured zooming by the Earth by Observatory Pla d'Arguine in Segorbe, Spain.
24 June 2011, 06:00 PM ET
The planet Jupiter dances with a slender waning crescent moon this weekend in the night sky.
23 June 2011, 02:01 PM ET
Earth and the other rocky planets aren't made out of the solar system's original starting material.
23 June 2011, 08:01 AM ET
The planets Venus, Jupiter, Mars are shining bright at dawn in the northeastern sky.
22 June 2011, 08:45 AM ET
The Lunar Reconnaissance Orbiter (LRO) generated lunar elevation map has produced a much sharper view than that of its predecessor. Another step in enabling safe and effective exploration of the moon.
21 June 2011, 06:24 PM ET
The exploration phase of the Lunar Reconnaissance Orbiter's life has been a complete success, NASA officials say.
21 June 2011, 03:54 PM ET
A NASA spacecraft has captured a stunning new image of a small, icy Saturn moon.
17 June 2011, 11:11 AM ET
Buzz Aldrin, the second man to walk on the moon, has separated from his wife of 23 years, Lois Driggs Cannon.
15 June 2011, 11:38 AM ET
China's moon probe, Chang'e 2, is now beginning a new phase of deep space exploration.
14 June 2011, 08:00 AM ET
What if dinosaurs had not gone extinct? What if Earth was twice as large? How 10 key moments in history could change the present.
09 June 2011, 11:37 AM ET
Saturn forms two night sky triangles this month, one with stars and the other with the moon.
08 June 2011, 03:24 PM ET
June's first quarter moon tonight is the best time for skywatchers to gaze at the moon this month.
07 June 2011, 12:33 PM ET
The first comprehensive set of maps of the slopes and craters on the lunar surface is showing a whole new moon.
06 June 2011, 07:29 AM ET
The Moon is constantly being resurfaced, creating many terrain-types, great diversity among craters and making places where water ice hides; awaiting a generation of moon-miners to turn it into commercially viable life support and rocket fuel
03 June 2011, 03:37 PM ET
NASA?s 2011 Lunabotics competition saw 46 robots from around the world fighting to prove their worth by collect the most simulated moon rocks.
03 June 2011, 02:56 PM ET
The lander test went as planned, but a grass fire was sparked by concrete kicked up from the launch pad.
03 June 2011, 02:51 PM ET
See photos of NASA's Project Morpheus, a robot lander to test space exploration tech.
02 June 2011, 05:35 PM ET
An asteroid the size of a small motorhome zoomed near Earth last night (June 1), coming closer to us than the moon sits.
01 June 2011, 10:35 AM ET
There are a great many wonders to see in the night sky. A telescope is your magic carpet, your time machine and much more.