Titan's alien lakes of methane may be formed from the same processes that create sinkholes on Earth.
Ready for your close-up? How spacecraft changed our image of moons, planets and other objects in our solar system.
After a 7-month hiatus, the revived European comet lander is nearly ready to resume work, expanding on our scientific understanding of the solar system.
Could this bright glinting object on Comet 67P/Churyumov-Gerasimenko's surface be Europe's lost comet lander?
Three crewmembers who have been aboard the International Space Station for an extended, 6.5-month mission will be heading home on Thursday, with no launch date set for their replacements.
Europe launched a new bid Friday to communicate with its comet lander Philae, hurtling towards the sun some 360 million kilometers (224 million miles) from Earth.
It's the dawn of a new age: Freshly brewed coffee is being served on the International Space Station in specially designed 3-D printed microgravity cups.
As we celebrate Hubble's 25th year in space, let's have a quick rundown of some of the space telescope's key statistics.
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