The image shows the Coal Sack, the Southern Cross, Eta Carinae and various young star clusters as well as the Milky Way.
The 'elusive planet' Mercury kicks off the month in the midst of its best evening apparition of 2015. But Mercury isn't the only visible planet this month.
When you block out the glare of the sun, usually invisible -- and beautiful -- phenomena pop into view.
NASA flight engineer Terry Virts paid respects to Leonard Nimoy from the International Space Station.
Like a coworker looking over her shoulder in the office, Curiosity has a Martian colleague checking up on her progress from high above.
Comet Lovejoy can be easily spotted using binoculars or small telescope, but this is what it looks like up close!
At a distance of only 10 miles from comet 67P/Churyumov-Gerasimenko's surface, the European Rosetta mission has captured yet another dazzling self portrait with the dark comet lurking in the background. Continue reading →
During Tuesday's spacewalk, astronaut Alexander Gerst took this awe-inspiring photograph high above Earth. Continue reading →
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