An international team of scientists using a fleet of orbiting X-ray telescopes has discovered a millisecond pulsar with a dual identity.
This colorful scene is situated in the Noctis Labyrinthus region of Mars, perched high on the Tharsis rise in the upper reaches of the Valles Marineris canyon system.
After almost 9 years in space that included an unprecedented July 4th impact and subsequent flyby of a comet, NASA's Deep Impact mission has ended.
NASA's Voyager 1 spacecraft officially is the first human-made object to venture into interstellar space.
On Friday, Sept. 6, NASA is scheduled to launch a small satellite mission, called the Lunar Atmosphere and Dust Environment Explorer (LADEE)
NASA's Mars rover Opportunity is studying the area of contact between a rock layer formed in acidic wet conditions long ago and an even older one
There is only one planet we know of, so far, that is drenched with life. That planet is Earth
Astronomers have detected the first population of radio bursts known to originate from galaxies beyond our own Milky Way.
This image from NASA's Galaxy Evolution Explorer shows NGC 6744, one of the galaxies most similar to our Milky Way in the local universe.
Data from Voyager 1, now more than 11 billion miles (18 billion kilometers) from the sun... is closer to becoming the first human-made object to reach interstellar space.
More than 10,000 asteroids and comets that can pass near Earth have now been discovered.
NASA's Hubble Space Telescope will have two opportunities in the next few years to hunt for Earth-sized planets
The radar imagery revealed that 1998 QE2 is a binary asteroid.
Because of GRAIL's findings, spacecraft on missions to other celestial bodies can navigate with greater precision in the future.
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