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Watch SpaceX Dragon depart ISS May 11
The SpaceX Dragon cargo spacecraft, carrying valuable science research, will depart from the International Space Station (ISS) and return to Earth. Watch it live.
May 10, 2016
Why Planet 9 shouldn’t exist
Earlier this year, scientists presented evidence for a Planet Nine in the far outer solar system. Scientists think it exists, but - if so - how did it get there?
May 9, 2016
Mars and Saturn in 2016
Video of this year's oppositions of Mars and Saturn, in front of the constellations Libra and Scorpius. Notice Mars appearing larger around its May 22 opposition!
May 8, 2016
Watch Mercury inch closer to the sun
Mercury is getting ready to transit the sun on May 9. This video from the SOHO sun-watching camera shows Mercury inching closer to the sun's disk, day by day.
May 7, 2016
Rare time-lapse of Webb mirror rollover
Inside the world's largest clean room at Goddard Space Flight Center, the James Webb Space Telescope team lifted and turned the telescope for the first time last week.
May 7, 2016
Guide to Mars’ opposition on May 22
Earth flies between Mars and sun on May 22, bringing it closer than Mars has been in over a decade. How to find and enjoy Mars during 2016's close opposition!
May 6, 2016
A pure methane sea on Titan
We knew that Saturn's moon Titan had seas and lakes of liquid hydrocarbons, but their exact composition was unknown until recently.
May 3, 2016
Just 40 light-years away, 3 potentially habitable planets
Earth-like planets aren't exclusively orbiting sunlike stars. Ultracool dwarf star TRAPPIST-1 hosts 3 potentially habitable planets.
May 3, 2016
Orbit like a comet, rocky like an asteroid
They're calling it a Manx comet, after the cats with no tails. It may have formed in the inner solar system and been ejected outward.
May 3, 2016
Astronomical events in 2016
A month by month listing of major moon phases, conjunctions, oppositions, meteor showers and other important dates, from astronomer Fred Espenak.
May 3, 2016
