April 11, 2014
Next year, with the assistance of the world's only twin astronauts, NASA will conduct an unprecedented experiment in human biology. While one twin remains on the ground, the other will circle Earth onboard the International Space Station for a full year. Will the twins still be identical when they are re-united? The answer could help NASA make space travel safer for generations of astronauts to come.
April 3, 2014
NASA's Cassini spacecraft and Deep Space Network have uncovered evidence that Saturn's moon Enceladus harbors a large underground ocean of liquid water, furthering scientific interest in the moon as a potential home to extraterrestrial microbes.
April 1, 2014
A new study shows that the length of the melt season for Arctic sea ice is growing by several days each decade. The earlier start is allowing the Arctic Ocean to absorb enough additional solar radiation in some places to melt as much as four feet of the Arctic ice cap's thickness.
March 28, 2014
Earth and Mars are converging for a close encounter in April, an event astronomers call "the opposition of Mars."
March 27, 2014
A total lunar eclipse on April 15th marks the beginning of a remarkable series of eclipses all visible from North America.
March 7, 2014
Astronomers have figured out how to use the gravity of distant galaxies to bend light and magnify images, forming gigantic telescopes that see deeper into the cosmos than ever before.
March 6, 2014
NASA's Hubble Space Telescope has recorded the never-before-seen break-up of an asteroid into as many as 10 smaller pieces.
Feb. 26, 2014
Today, NASA announced a breakthrough addition to the catalog of new planets. Researchers using Kepler have confirmed 715 new worlds, almost quadrupling the number of planets previously confirmed by the planet-hunting spacecraft. Some of the new worlds are similar in size to Earth and orbit in the habitable zone of their parent stars.
Feb. 26, 2014
NASA and JAXA are about to launch a new satellite that can see through storms, tracking rain and snow around the globe better than any previous observatory. The Global Precipitation Measurement Core Observatory is scheduled to lift off from Japan on Feb. 27th.
Feb. 19, 2014
New data from a NASA X-ray observatory shows that the cores of supernovas probably slosh around before detonating. This helps solve a longstanding mystery about how supernovas explode.