16 December 2014, 01:19 PM ET
The International Astronomical Union has announced a competition to name five craters on Mercury, and the winners will be announced next spring at the end of the MESSENGER spacecraft's mission.
16 December 2014, 11:40 AM ET
New findings suggest that glaciers played a role in carving out Valles Marineris, the Martian 'Grand Canyon.'
16 December 2014, 10:09 AM ET
NASA’s Voyager 1recorded three 'waves' of plasma set in motion by coronal mass ejections from our Sun. Plasma interacting with ionized matter creates energy fluctuations which have been converted to sound by researchers.
16 December 2014, 07:34 AM ET
A NASA spacecraft that recently arrived in orbit around Mars is already helping to solve a Martian mystery. See how NASA's MAVEN spacecraft is revealing new secrets of the Red Planet.
15 December 2014, 08:00 AM ET
The new image shows "ultra-luminous X-ray sources" (ULXs) studding the spiral galaxies NGC 2207 and IC 2163, which are grazing each other about 130 million light-years from Earth, in the constellation Canis Major.
15 December 2014, 07:00 AM ET
Viewing Saturn's rings from a distance can create the illusion that they are opaque. But close-up images from the Cassini spacecraft reveal many gaps and grooves.
14 December 2014, 07:19 AM ET
NASA released a video with incredible views of the massive coronal mass ejection that erupted from the sun in July 2012.
13 December 2014, 12:16 PM ET
From what looks like a freshly baked pie on Mars to a great shot of Dwarf Planet Ceres, don't miss these amazing space images of the week for Dec. 13, 2014.
12 December 2014, 03:20 PM ET
NASA will receive $18 billion for 2015, more than a half a billion dollars above the Obama administration’s original request, under the terms of an omnibus spending bill released late Dec. 9.
12 December 2014, 12:00 PM ET
Where did Earth's water come from? Comets? Asteroids? New data from the Rosetta spacecraft orbiting Comet 67P/Churyumov-Gerasimenko shows that comets — once thought responsible for seeding Earth with water — might not have delivered water to the planet.
12 December 2014, 07:55 AM ET
These maps shine a new light on Saturn's six major icy moons — Mimas, Enceladus, Tethys, Dione, Rhea and Iapetus.
12 December 2014, 07:14 AM ET
A ground-based telescope in Spain was able to identify a super-Earth orbiting a sunlike star. With the assistance of telescopes on the ground, astronomers could move faster in the search for habitable planets around other stars.
11 December 2014, 10:49 PM ET
Earth is the only planet known to support life. Learn about Earth science facts and the planet’s interior composition, surface and atmosphere.
11 December 2014, 02:52 PM ET
Scientists working on the newest dark matter experiments hope to uncover the "missing link" of the universe.
11 December 2014, 02:01 PM ET
The presence of liquid water is just one of many factors that researchers need to take into account when investigating the past or present habitability of Mars or any other cosmic body, researcher Pamela Conrad says.
11 December 2014, 12:47 PM ET
The signal, spotted in the Perseus galaxy cluster and the Andromeda galaxy, corresponds to no known particle or atom and thus may have been produced by dark matter.
11 December 2014, 12:32 PM ET
Odd X-ray photon blasts from the Andromeda Galaxy, the Perseus cluster and our own Milky Way correspond to theoretical predictions of Dark Matter, which may make up 80% of our universe’s mass.
11 December 2014, 12:13 PM ET
Pioneering female astronomer Annie Jump Cannon was immortalized in Google-doodle form today. Cannon came up with the modern system for classifying stars
11 December 2014, 07:30 AM ET
The image shows a geological phenomenon known as "cross-bedding" within Whale Rock, part of an outcrop at the base of Mount Sharp, a mountain that rises 3.4 miles into the sky from the center of Mars' huge Gale Crater.
11 December 2014, 07:00 AM ET
Data gathered by NASA’s twin Van Allen Probes, which launched in August 2012, show that the donut-shaped Van Allen belts present a nearly impenetrable barrier to high-energy electrons, keeping them from hitting Earth.
11 December 2014, 12:00 AM ET
NASA's Mars rover Curiosity is beaming home amazing photos of the Red Planet.
10 December 2014, 05:00 PM ET
The first color maps of Saturn's moons using data from Cassini spacecraft have been created.
10 December 2014, 04:08 PM ET
Just in time for the festive period, the Hubble Space Telescope has released a dazzling image of a globular star cluster filled with stellar glitter.
10 December 2014, 02:01 PM ET
Asteroids, not comets, may have delivered most of Earth's water to the planet when the solar system was young, new data from a probe orbiting a comet suggests.
10 December 2014, 08:00 AM ET
A meteorite that crashed down in California's gold country is showing off treasures of a different sort: small diamonds that could tell scientists more about the insides of asteroids.
10 December 2014, 07:00 AM ET
Assembly, test and launch operations began recently for NASA's InSight lander, which aims to study the interior of Mars to learn more about how the solar system's rocky planets formed 4.5 bilion years ago.
09 December 2014, 02:50 PM ET
In a section from his book 'Five Billion Years of Solitude: The Search for Life Among the Stars,' Lee Billings discusses how the need for energy is tied to the search for intelligent life in the universe.
09 December 2014, 01:22 PM ET
The Orion Multipurpose Crew Vehicle is NASA's planned spacecraft to take astronauts into space beyond Earth orbit. The agency plans to run the first test flight of the spacecraft in December 2014, with crewed missions possibly following in the early 2020s
09 December 2014, 01:00 PM ET
Claims that scientists have discovered a huge asteroid that could threaten Earth aren't correct, according to NASA.
09 December 2014, 12:56 PM ET
Asteroid 2014 UR116, spotted by astronomers in Kislovodsk, Russia, turns out to have been observed 6 years ago. NASA’s JPL combined the data to show the asteroid passes no closer than 29x the distance to the moon in 2017.
08 December 2014, 04:57 PM ET
The towering dunes on Saturn's largest moon, Titan, which are similar to the sandy hills of the Sahara, are not formed continuously over time, but by short, powerful rogue winds, researchers say.
08 December 2014, 03:31 PM ET
Curiosity has found evidence that the 96-mile-wide (154 kilometers) Gale Crater, which the rover has been studying since August 2012, hosted a large lake long ago. Runoff into this lake eventually built up Mount Sharp, mission scientists say.