17 December 2014, 04:12 PM ET
Already running on fumes as its fuel reserves dwindled, Venus Express' most recent attempts at maintaining its altitude fell short.
17 December 2014, 03:50 PM ET
It's now approaching summer in the presumed location of Europe's Philae lander on a comet, so the washing-machine-size probecould soon access enough energy to open its eyes and start working again, Rosetta mission scientists said.
17 December 2014, 10:37 AM ET
Imagery from the NASA/NOAA Suomi NPP satellite show lighting patterns change on holidays around the world. Energy usage varies across across different cultural and socioeconomic areas.
17 December 2014, 07:00 AM ET
The discovery is not evidence that life exists, or has ever existed, on Mars, researchers stressed. But it does mark the first time that organics have been confirmed inside Red Planet rocks, and it checks off a chief goal of the rover team.
17 December 2014, 06:00 AM ET
New imagery captured by the La Silla Observatory MPG/ESO 2.2-metre telescope of of star cluster Messier 47, shows a star cluster where only ~50 stars can be seen in an area 12 light-year across area.
17 December 2014, 06:00 AM ET
A new image of a well-known star cluster in the southern sky, shows off hot blue stars sparkling amid red giants.
17 December 2014, 06:00 AM ET
City lights across the United States blaze 20 to 50 percent more brightly in December than they do the rest of the year, and some cities in the Middle East brighten by more than 50 percent during the Muslim holy month of Ramadan, researchers said.
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, 11:45 PM ET
This stunning dream like space wallpaper of the La Silla sunset was released Dec. 8, 2014.
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, 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, 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.