30 December 2014, 09:34 AM ET
The Dawn mission will arrive at the dwarf planet in March 2015. The probe uses an ion engine to propel it throughout the solar system. Find out how they work.
30 December 2014, 07:02 AM ET
Rocky, close-orbiting exoplanets may be stretched out by their parent stars' gravity, researchers say. Such worlds would be extremely hot and and likely inhospitable to life.
30 December 2014, 07:00 AM ET
Dawn has officially entered the Ceres approach phase, after recently emerging from behind the sun relative to Earth and thus coming back into reliable communication range. The probe will enter orbit around Ceres on March 6.
29 December 2014, 06:46 PM ET
The 'Interstellar' actress talks about the early stages of the space agency's exploration agenda.
29 December 2014, 04:22 PM ET
Unlike previous visualizations, the Evolution and Assembly of GaLaxies and their Environments (EAGLE) simulation incorporates galactic winds into the equation mold the Universe. A team of astronomers from the Universities of Leiden in the Netherland
29 December 2014, 03:56 PM ET
The first-ever hand tool to be emailed up to the International Space Station can now be downloaded to anywhere on Earth.
29 December 2014, 02:42 PM ET
Faced with the job of carefully putting together the $8.8 billion James Webb Space Telescope, NASA and lead contractor Northrop Grumman are starting to run practice assembly tests using a "pathfinder" telescope.
29 December 2014, 01:00 PM ET
How much of the movie "Interstellar" is fiction, and how much is based in fact? Theoretical physicist Kip Thorne writes about his work keeping the science fiction epic within the realm of possibility.
29 December 2014, 12:14 PM ET
The beginning of 2015 will be the best time to observe a new comet that could put on a potentially spectacular show in Earth's skies.
29 December 2014, 12:00 PM ET
What can space fans look forward to next year? Closely watched spacecraft are expected to start pumping out science, while private spaceflight companies have a number of launches on the books for 2015.
29 December 2014, 11:00 AM ET
In his new book "The Science of Interstellar" (W.W. Norton & Company, 2014), theoretical physicist Kip Thorne discusses his time working on the movie "Interstellar," and his mission to root the film in real science.
29 December 2014, 10:01 AM ET
The space agency continued their exploration mission with many scientific discoveries on Earth and beyond in 2014. They also announced plans and conducted tests for future missions.
29 December 2014, 07:33 AM ET
Here's a look at the top alien-planet discoveries of 2014, from the first potentially habitable Earth-size world to a staggering haul of 715 newly announced exoplanets.
29 December 2014, 07:31 AM ET
Researchers have trained the Hubble Space Telescope on Europa repeatedly since Europa's geysers were first announced last year, in an attempt to confirm and characterize the plumes. But they've come up empty.
28 December 2014, 01:33 PM ET
In a two-in-one mission, the Indian Space Research Organisation (ISRO) successfully conducted the first experimental flight of its next-generation launch vehicle and demonstrated the re-entry and recovery of a prototype crew capsule.
28 December 2014, 01:23 PM ET
The Russian space agency, Roscosmos, successfully demonstrated the heavy-lift version of its long-awaited Angara series of rockets Dec. 23 from the Plesetsk Cosmosrome in northern Russia, the agency said.
28 December 2014, 08:37 AM ET
Venus may have once possessed strange oceans of carbon dioxide fluid that helped shape the planet's surface, researchers say.
27 December 2014, 09:06 AM ET
Look to the sky Sunday (Dec. 28) to see the moon in a close encounter with the planet Uranus. Uranus is theoretically visible with the unaided eye, but realistically most of us need binoculars to see it.
26 December 2014, 07:07 AM ET
Mars, like Earth, experiences "macroweather" — atmospheric effects that lie in between short-term weather and long-term climate. The discovery could shed light on the atmospheres of Earth and other planets in the solar system and beyond.
26 December 2014, 07:00 AM ET
One of the most recognizable nebulas of the night sky – the Horsehead Nebula – loses its distinctive shape in a new image released from NASA's Spitzer Space Telescope. In the new photo, the nebula loses its distinctive shape because of infrared light.
25 December 2014, 08:20 AM ET
While lights decorating Christmas trees twinkle indoors, the stars of the Christmas sky shine brightly during the last week of 2014.
25 December 2014, 07:00 AM ET
While many of us here on Earth are opening presents and feasting on Christmas Day (Dec. 25), astronauts aboard the International Space Station will be having their own celebration high above the planet's surface.
24 December 2014, 02:28 PM ET
A Christmas tradition in New York City has taken on a decidedly cosmic twist at Macy's.
24 December 2014, 02:10 PM ET
NORAD — short for the North American Aerospace Defense Command, a joint effort of the United States and Canada— is keeping an eye on the jolly old elf's annual gift-giving trek, and you can follow along at the "NORAD Tracks Santa" website.
24 December 2014, 01:05 PM ET
A NASA team is putting the finishing tweaks on its amazing, and somewhat creepy, climbing robot RoboSimian, a four-limbed automaton built to compete in a U.S. military robotics challenge in 2015.
24 December 2014, 12:39 PM ET
Astronauts in space have decked the halls of the International Space Station in honor of the holiday season.
24 December 2014, 11:42 AM ET
The fatal crash of a SpaceShipTwo space plane earlier this year sent shockwaves through the world of private space travel, but suborbital spaceship's builder Virgin Galactic is making strides to learn from the tragic accident and move forward.
24 December 2014, 08:00 AM ET
They won't be home for Summer vacation: See how astronauts celebrate holidays in space.
24 December 2014, 07:00 AM ET
Nowadays, astronauts on the International Space Station can record video messages, talk with their family on the ground and have holiday parties in orbit. But the first Christmas humans spent in space, back in 1968, was a little different.
23 December 2014, 04:53 PM ET
Two close encounters with a comet, clues about Martian history and more amazing discoveries top Space.com's list of the best astronomy stories of the year.
23 December 2014, 04:22 PM ET
The wrench, along with the 19 other objects built by the orbiting 3D printer thus far, will travel to Earth early next year, where engineers will compare the objects with ground samples produced by the same machine before it launched.
23 December 2014, 04:00 PM ET
Astronomers have spotted a new object emerging from the ashes of a recently deceased star. The stellar post-mortem may also solve a mystery surrounding the unexpected shape of the star's explosive remains, scientists say.