09 May 2013, 07:58 PM ET
The ammonia system is one of several cooling loops that circulate liquids throughout the International Space Station.
09 May 2013, 02:24 AM ET
How Solar Eclipses Work: When the moon covers up the sun, skywatchers delight in the opportunity to see a rare spectacle.
06 May 2013, 02:00 PM ET
After decades of deterioration, Star Trek's Galileo shuttlecraft mockup is being restored to its original glory.
02 May 2013, 02:00 PM ET
The mission of the Kepler Space Telescope is to identify and characterize Earth-size planets in the habitable zones of nearby stars.
24 April 2013, 03:52 PM ET
Find out how Hubble has stayed on the cutting edge of deep-space astronomy for the past 20 years.
23 April 2013, 11:00 AM ET
Learn all about Russia's robot Progress cargo ships in this SPACE.com infographic.
18 April 2013, 02:05 PM ET
Scientists have discovered three super-Earths circling two different stars more than 1,000 light-years away.
12 April 2013, 05:21 PM ET
Fruit flies launched in 1947 became the first animals to reach outer space and be recovered alive.
10 April 2013, 05:15 PM ET
The ambitious plan would have the goal of moving a small asteroid to a new orbit near the Earth by the year 2025.
03 April 2013, 06:36 PM ET
Astronomers know more about what dark matter is not than what it actually is.
03 April 2013, 07:33 AM ET
The Cosmic Microwave Background radiation tells us the age and composition of the universe and raises new questions that must be answered.
02 April 2013, 01:08 PM ET
Take an in-depth look at the Alpha Magnetic Spectrometer will hunt dark matter, cosmic rays and antimatter galaxies.
20 March 2013, 01:10 PM ET
Amazon founder Jeff Bezos plans to raise sunken Apollo 11 moon rocket engines from the ocean floor. Learn more about the Saturn V rocket's F-1 engines in this SPACE.com infographic.
20 March 2013, 01:02 PM ET
NASA's Voyager 1 and 2 probes launched in 1977 to visit the outer planets of the solar system. After 35 years in space, the twin probes are approaching the edge of our solar system.
14 March 2013, 02:01 PM ET
Unlike most exoplanet discoveries, the system of HR 8799 can be directly viewed by Earth-based telescopes.
12 March 2013, 02:02 PM ET
Made up of dozens of small radio telescope dishes, the ALMA telescope will be one of the most powerful in the world when finished.
12 March 2013, 12:20 PM ET
Comet Pan-STARRS brightens Earth's night sky in March 2013. The comet was discovered in June 2011.
08 March 2013, 07:38 PM ET
A fragment of the Chinese Fengyun 1C weather satellite, destroyed on purpose in 2007,damaged the Russian nanosatellite BLITS on Jan. 22, 2013.
28 February 2013, 02:36 PM ET
Already tested as a cargo carrier, the Dragon spacecraft can also be fitted out to shuttle passengers to low orbit and to the International Space Station.
27 February 2013, 09:49 AM ET
Since the 1960s, humans have invaded our neighboring planet Mars with swarms of spacecraft. Only half of the attempts ever succeeded.
20 February 2013, 01:00 PM ET
Kepler-37b, about the size of Earth's moon, orbits a sun-like star 215 light-years away.
15 February 2013, 03:54 PM ET
The Feb. 15, 2013 meteor blast over Chelyabinsk, Russia, damaged hundreds of buildings and injured more than 1,000 people.
12 February 2013, 07:00 PM ET
On Feb. 15, 2013, a 150-foot asteroid will fly past Earth at an altitude of 17,200 miles - closer than our own communications satellites.
10 February 2013, 10:24 AM ET
See how NASA's Landsat satellite constellation has revolutionized our understanding of Earth over 40 yearsa in this SPACE.com infographic.
07 February 2013, 10:07 AM ET
Sept. 8, 2011 marks 45 years since "Star Trek" first appeared on TV screens.
01 February 2013, 04:17 PM ET
Missile technology has extended the military reach of countries to the entire planet.
01 February 2013, 09:14 AM ET
See how the Columbia shuttle accident of Feb 1, 2003, occurred in this SPACE.com infographic.
01 February 2013, 06:00 AM ET
NASA's space shuttles are amazing flying machines. They launch like rocket, land like airplanes and then hit the hangar for a pit stop before turning around and doing it again.
Now, nearly 30 years after the first space shuttle - Columbia - bla
30 January 2013, 04:02 PM ET
See how NASA's Tracking and Data Relay Satellites comsat constellation works in this SPACE.com Infographic.
28 January 2013, 06:33 AM ET
Space is a dangerous place for humans. Learn about the perils of human spaceflight in this infographic.
26 January 2013, 09:30 AM ET
Moon Astronomy Lesson: Learn more about moon phases, a waxing and waning crescent or gibbous moon and the lunar cycles of Earth’s moon each month at SPACE.com.
24 January 2013, 07:24 AM ET
The nuclear-powered mobile science laboratory Curiosity will roll across the surface of Mars for years, searching for the conditions that may have once made Mars an abode of life.