Why Do Galaxies Have Arms?
Spiral galaxies get their name because of their beautiful spiral shape and iconic arms. But why do galaxies have these…
Fly to Rosetta’s Comet with this New Interactive Visualization
Hang onto your space helmets. With a few moves of the mouse, you can now follow the European Rosetta mission…
Three NASA Telescopes Begin Hunt For Earliest Galaxies
Talk about turning back time. Three NASA observatories -- the Hubble Space Telescope, the Chandra X-Ray Observatory and the Spitzer…
NASA Severs Most Ties With Russia, Sparing Station But Pushing For U.S. Launches Again
NASA plans to cease most work with the Russian Federal Space Agency amid growing tensions concerning the Ukrainian crisis, a…
Get Ready for the April 15, 2014 Total Lunar Eclipse: Our Complete Guide
April the 15th: In the United States, it’s a date dreaded by many, as the date to file taxes –…
The Moon Is Just 95 Million Years Younger Than The Solar System: Study
Stuff from Earth's interior, combined with simulations, have one research team pinning down the Moon's age to only 95 million…
Arctic Melting Is Lasting Longer And Affecting More Ice: Study
The Arctic melt season is averaging five days longer with each passing decade, a new study by NASA and the National…
Tranquil-Looking Galaxy Bears ‘Battle Scars’ From Ancient Struggles
Shining 60 million light-years away all serene-looking is NGC 1316 (left) and a smaller galaxy NGC 1317. This new picture…
Massive Earthquake off the Coast of Chile Triggers Tsunami Warnings in the Pacific
An 8.2-magnitude earthquake off the coast of northern Chile on April 1, 2014 was followed by at least a dozen…
Astrophotos: Here’s What a Super-thin Crescent Moon Looks Like
Last night, you could have sung that old astronomical favorite, "By the light of the slivery Moon." Yep, it was…