17 December 2014, 12:05 AM ET
These images show that many cities around the world shine more brightly during the holiday season — December in the United States, and the Muslim holy month of Ramadan in the Middle East — than they do during the rest of the year.
16 December 2014, 07:09 PM ET
COSMOS - A Spacetime Odyssey's presenter/co-writer talks about Stephen Hawking's black hole theory, known as "Hawking Radiation".
16 December 2014, 06:30 PM ET
NASA's Curiosity rover is continuing to help scientists piece together the mystery of how Mars lost its surface water over the course of billions of years.
16 December 2014, 06:22 PM ET
Space creates an important laboratory to fight against cancer on the ground.
16 December 2014, 04:22 PM ET
NASA's Voyager 1 spacecraft — the only object made by humans to leave the solar system — might still be caught in a tsunami-like shock wave that first hit the probe in February.
16 December 2014, 04:21 PM ET
Maxim Senin compiled over 15,000 photos taken on the evening of Dec. 12th into the early morning hours of Dec. 13th. Up to 5 meteor per minute could be seen even through the light pollution of the major U.S. city.
16 December 2014, 02:56 PM ET
16 December 2014, 02:11 PM ET
These finding "strongly suggests that Mars is active" according to atmospheric scientist Sushil K. Atreya of the Mars Science Laboratory mission team as he breaks down possible sources of the methane on Mars.
16 December 2014, 02:08 PM ET
The Mars Science Laboratory's Tunable Laser Spectrometer (TLS) instrument was used to confirm the presence of methane on several occasions during the rovers' study of the Red Planet.
16 December 2014, 01:35 PM ET
NASA's Curiosity rover has recently made a surprising find on Mars that could help scientists get one step closer to figuring out if the Red Planet has ever supported life.
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, 01:05 PM ET
A storm over central South Dakota provided these stunning images for astrophotographer Randy Halverson.
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, 04:55 PM ET
A European astronaut's idea for improving the wristwatches worn in space has become the basis for a new version of the timepiece first used on the moon. ESA astronaut Jean-François Clervoy's clockwork is in Omega's new Speedmaster Skywalker X-33.
15 December 2014, 02:12 PM ET
A spaceship powered by nuclear bombs secretly launched in the 1960s. A colony ship on 100-year journey to spread humanity to the stars. Meet the SyFy Channel's epic miniseries: 'Ascension.'
15 December 2014, 01:40 PM ET
Skywatchers with telescopes on Earth will be able to witness a remarkable cosmic event tonght: Two of Jupiter's moons will cast shadows on the face of the gas giant in the same night.
15 December 2014, 11:56 AM ET
The Geminid meteor shower amazed skywatchers willing to brave the cold to catch the annual display this weekend.
15 December 2014, 11:05 AM ET
Raw footage of early “nuclear pulse propulsion" tests aimed at inexpensive interplanetary travel; essentially nuclear bombs driving spacecraft via Newton’s laws. 1963’s Test Ban Treaty damped further experimentation.
15 December 2014, 08:20 AM ET
It has been 60 years since Col. John P. Stapp sailed down a test track, strapped in tight onboard Sonic Wind Rocket Sled 1.
15 December 2014, 08:01 AM ET
Astrophotographer Jason Matias took this image in July 2014 above the High Atlas mountains in sub-Saharan Morocco.
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, 07:58 AM ET
"Sepideh: Reaching for the Stars" follows a young Iranian woman who dreams of becoming an astronaut but faces obstacles from her conservative country.
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, 05:11 PM ET
The online Slooh community observatory will broadcast live views of the Geminid meteor shower Saturday (Dec. 13) starting at 8 p.m. EST (0100 Dec. 14 GMT).
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.
13 December 2014, 07:26 AM ET
See the Geminid meteor shower peak tonight (Dec. 13) through three webcasts airing live online.
12 December 2014, 05:08 PM ET
Having successfully splashed down after its first spaceflight, NASA's Orion spacecraft is set to launch onto the big screen in a large-format 3D film. 'Journey To Space' tells the true story of what the next chapter of space exploration will bring.
12 December 2014, 03:22 PM ET
A new laser link with the International Space Station could do what optical fiber has done for internet access on Earth -- by turning orbital communications from painfully slow dial-up to blazing-fast broadband.
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.