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Moon Rocks Reveal Evidence of Ancient Asteroid Barrage
Scientists had wondered what caused the massive impacts 3.9 billion years ago.
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Sunday's Solar Eclipse 'Ring of Fire': Where and How to See It
Get skywatching tips for when and where to see the annular solar eclipse of May 20 in this guide.
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When Aliens Attack: 'Battleship' Strategy with SETI Astrono...
Seth Shostak, a senior astronomer at the SETI Institute, talks all things "Battleship."
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Image of the Day
Spiral galaxies approaching collision.
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Constellation Station: Bright Stars Sparkle in Skywatcher P...
Skywatcher Tunc Tezel captures the Virgo constellation and more in this view from Turkey.
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Will Inflatable Spacecraft Shield Survive Re-Entry Burn? | ...
Final preparations are underway for the launch of the Inflatable Re-Entry Vehicle Experiment (IRV...
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TOP STORIES
Rocket Launch Saturday Is One Giant Leap for Commercial Spa...
Monster Sunspot's Solar Flare Strong Enough to Confuse Sate...
Sunday Solar Eclipse: How to Safely Photograph the 'Ring of...
4,700 Potentially Dangerous Asteroids Lurk Near Earth, NASA...
Annular Solar Eclipse of May 20: Complete Coverage
IMAGE ALBUMS
Space Station's Robotic Cargo Ship Fleet (A Photo G...
How to Safely Photograph the Sun (A Photo Guide)
Annular Solar Eclipse of May 20, 2012 (Photo Guide)
Photos: SpaceX Set for Historic Launch to Space Sta...
IMAGE OF THE DAY
Mash It Up
TOPICS
SpaceX, Dragon Capsule & Falcon 9: Latest News
COUNTDOWNS
Now Boarding: The Top 10 Private Spaceships
INFOGRAPHICS
Solar Eclipses: An Observer's Guide (Infographic)
WALLPAPERS
Ancient Asteroid Impact on the Moon
Human Spaceflight
New US-Russian Crew Arrives at Space Station
The three spaceflyers will live aboard the station for four months.
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SpaceX Launching Student Experiments and Emblems on 1st Space Station Flight
Smokey & Fire: Astronaut Launches Into Space with Forest Service's Smokey Bear
New Astronaut Crew Launches Toward Space Station
Private Spaceflight
Space Spiders and Wine: Weird Science Launching...
Fifteen student experiments are flying aboard SpaceX's Dragon capsule.
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Private Rocket Launch Saturday May Herald New Commercial Spaceflight Era
Private Space Taxi Builders Ponder Future Beyond NASA
SpaceX's 1st Private Capsule Launch to Space Station: How It Will Work
Science & Astronomy
NASA Loans Space Telescope to Caltech
The Galex telescope has been in standby mode since February.
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How Venus Transit of Sun in June May Help Find Alien Planets
Colossal Superflares Erupt from Sun-Like Stars
Breathtaking View of Earth Taken by Russian Satellite
Search For Life
The 6 Most Likely Places to Find Alien Life
From Enceladus and Titan to Europa and Mars, here are the likeliest spots to find extraterrestrials.
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Space Probe Fleet Idea Would Search for Mars Life
Ancient Mars Rocks Could Have Sheltered Life, Study Suggests
Europe to Explore Jupiter's Icy Moons with JUICE Spacecraft
Skywatching
World's Largest Solar Eclipse Party Takes Over ...
The University of Colorado's Folsom Stadium will be invaded by sun-watching enthusiasts on May 20.
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How to Spot Asteroid Juno in the Night Sky
Sunday Solar Eclipse Visible from National Parks
Omega Centauri Shines Over Dark Forest in Skywatcher Photo
Tech & Robots
Spacecraft Repair Droids Could Give Satellites ...
ViviSat is developing a spacecraft to extend the lives of satellites in orbit.
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2,000 Apply for Jobs Building Asteroid-Mining Robots
Swarm of Tiny Satellites Would Serve as Soldiers' Eyes
How Telerobotics Could Help Humanity Explore Space
Reference
Constellations: The Zodiac Constellation Names
There are 13 popular constellations in the zodiac. But these are just some of the star constellations astronomers use to divide the sky.
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Solar Ecli...
Total solar eclipses are one of Nature’s grandest events. What...
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Lunar Ecli...
Lunar eclipses occur when Earth's shadow blocks the sun. There...
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Nicolaus C...
In the 1500s, when virtually everyone believed Earth was the c...
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Galaxies: ...
Galaxies are composed of stars, dust, and dark matter, all hel...
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Edwin Powe...
Often lauded as the father of modern cosmology, Edwin Powell H...
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VIDEO
Safely See the Sun – Build a Shoebox Pinhole Ca...
Don’t look directly at the Sun! Life’s Little Mysteries’ Natalie Wolchover shows how you can build a simple shoebox "pinhole camera" out of household materials for safe solar viewing. It’s the harmless way t...
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Dying Star Punches Its Own Cocoo...
Some supernovas are more violent than others. S...
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Intense Solar Flare Radiation Su...
This multiple filtered/wavelength view of an M5...
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Strange Galaxy - Heart of the Ce...
The odd elliptical galaxy, Centaurus A (NGC 512...
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Birth of a Giant Iceberg – Unpre...
An enormous plain of Antarctic ice is splitting...
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Saturn's Oddball Moon Phoebe See...
Known for its backwards orbit around Saturn and...
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Blast Off! Expedition 31 Crew On...
Flight Engineers Joe Acaba, Gennady Padalka and...
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Space Shuttle Lifted From 747 In...
The Enterprise was "demated" from atop the Shut...
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Tractor-Trailer-Sized Asteroid Z...
A 42 foot space rock (asteroid 2012 JU) flew ab...
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Meteorite Fragments Searched For...
NASA Ames, the SETI institute and other organiz...
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