Dec. 4, 2014
Arctic and Antarctic sea ice are both affected by climate change, but the two poles of Earth are behaving in intriguingly different ways.
Nov. 28, 2014
The ruddy color of Jupiter's Great Red Spot is likely a product of simple chemicals being broken apart by sunlight in the planet's upper atmosphere, according to a new analysis of data from NASA's Cassini mission. The results contradict the other leading theory for the origin of the spot's striking color -- that the reddish chemicals come from beneath Jupiter's clouds.
Nov. 28, 2014
Two donuts of seething radiation that surround Earth, called the Van Allen radiation belts, have been found to contain a nearly impenetrable barrier that prevents the fastest, most energetic electrons from reaching Earth.
Nov. 25, 2014
Thanksgiving is the biggest travel holiday of the year. That's good news for sky watchers, because there are some things you can only see out the window of an airplane.
Nov. 24, 2014
The Moon might not be as dead as it looks. Researchers using NASA's Lunar Reconnaissance Orbiter have found signs of geologically-recent volcanic eruptions dotting the lunar landscape.
Nov. 21, 2014
An acoustic instrument onboard Philae heard a "crunch" when the ESA's lander touched down on Comet 67P.
Nov. 19, 2014
Born from the rubble of a violent collision, hurled through space for millions of years and dismembered by the gravity of planets, asteroid Bennu had a tough life in a rough neighborhood: the early solar system.
Nov. 18, 2014
Images taken by the Rosetta spacecraft's OSIRIS imaging system show the portions of the journey its Philae comet lander undertook on Nov. 12, as it approached and then rebounded off the surface of comet 67P/Churyumov-Gerasimenko.
Nov. 17, 2014
Images from NASA's Dawn Mission have been used to create a series of high-resolution geological maps of the large asteroid Vesta, revealing the variety of surface features in unprecedented detail. These maps are included with a series of 11 scientific papers published this week in a special issue of the journal Icarus.
Nov. 16, 2014
A map released by NASA's Near Earth Object (NEO) Program reveals that small asteroids frequently enter and disintegrate in the Earth's atmosphere with random distribution around the globe. Released to the scientific community, the map visualizes data gathered by U.S. government sensors from 1994 to 2013.