21 November 2011, 05:14 PM ET
For more than 50 years, NASA's robotic deep space probes have carried nuclear batteries provided by the U.S. Department of Energy. Even the crewed Apollo moon landings carried nuclear powered equipment.
18 November 2011, 05:03 PM ET
A celestial triangle made up of the moon, Mars and Regulus can be seen in the sky early Saturday morning.
18 November 2011, 07:00 AM ET
The new topographic view maps the moon with a resolution of 330 feet per pixel.
17 November 2011, 07:00 AM ET
Bright moonlight could outshine even the brightest meteors this year.
14 November 2011, 02:02 PM ET
Moon Express co-founder Naveen Jain chats with SPACE.com about our planet's natural satellite.
10 November 2011, 02:15 PM ET
NASA's Space Launch Systems upper stage J-2X rocket engine was successfully test fired for 500 seconds on November 9th, 2011.
10 November 2011, 09:24 AM ET
Earth and Planetary Science Professor Randy L. Korotev of Washington University in St. Louis examines meteorites from different celestial bodies and talks about what makes one more valuable than the other.
09 November 2011, 08:58 AM ET
John Chumack (www.galacticimages.com) captured these images of the space rock's Earth fly-by in Yellow Springs, Ohio. The asteroid was about 201,700 miles away and was passing between the Moon and Earth.
03 November 2011, 10:23 AM ET
Asteroid 2005 YU55 will fly an estimated 201,700 miles from Earth at its closest point (Nov. 8th & 9th). Radio antennas pointed towards the 1300-foot-wide space rock will provide scientists with imagery resolution of up to 7 feet per pixel.
28 October 2011, 07:30 AM ET
A rundown of some of October's spooky space happenings, just in time for Halloween.
20 October 2011, 04:16 PM ET
The Orionids aren't the only interesting objects in the sky this week.
11 October 2011, 07:00 AM ET
A new map of the lunar surface revealed areas rich in valuable titanium ore.
11 October 2011, 02:28 AM ET
Skywatchers shoot remarkable image of Earth’s gibbous moon captured in the hands of an observer holding tissue paper.
10 October 2011, 10:46 AM ET
The crowds turned out Saturday for International Observe the Moon Night.
07 October 2011, 02:54 PM ET
The public is invited to celebrate International Observe the Moon Night tomorrow (Oct. 8).
04 October 2011, 07:23 PM ET
Peaking under the thick atmosphere using Cassini's Visual and Infrared Mapping Spectrometer, an international team has composed a global color map of Titan. This mosaic was compiled from imagery taken over seventy flybys of Saturn's largest moon.
03 October 2011, 10:40 AM ET
Two comets and the Draconid meteor shower dominate October's skywatching events.
03 October 2011, 10:37 AM ET
The waves are generated by temperature differences created by the moon's shadow.
10 September 2011, 09:39 AM ET
See amazing launch photos of NASA's twin Grail gravity probe launch.
10 September 2011, 09:08 AM ET
NASA's Grail mission will study the inside of the moon and its gravitational field.
10 September 2011, 08:21 AM ET
High-altitude winds have once again delayed the launch of NASA's Grail mission.
10 September 2011, 03:40 AM ET
Was it the Texas wildfires from space, the world's largest solid motor rocket launch or something else that grabbed you.
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.