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Two planets beyond Pluto?
New calculations by astronomers in Spain and the UK suggest that not one, but two unknown planets might exist in our solar system, beyond Pluto's orbit.
January 15, 2015
How to see Comet Lovejoy in January 2015, plus best photos!
How to see Comet C/2014 Q2 Lovejoy - still visible through binoculars and telescopes. Finder charts and best photos!
January 15, 2015
Toxic chemical scare on International Space Station on Wednesday
An alarm indicated a possible leak of toxic ammonia. Astronauts evacuated the U.S. side of the station. Later, NASA said the problem might have been a faulty sensor.
January 14, 2015
First notable solar flare of 2015
It was an M-class flare, and it might have produced a brief communications blackout on Monday night. But no CME - coronal mass ejection - is headed our way.
January 13, 2015
Hurry! Mercury crater-naming contest ends January 15
Immortalize your favorite artist, composer, or writer! The competition to name five impact craters on Mercury closes on Thursday.
January 13, 2015
NASA’s way cool retro posters for futuristic space travel
Making future travel plans .. with an emphasis on 'future?' Check out these exoplanet travel posters from NASA.
January 13, 2015
SpaceX capsule docks with International Space Station
The SpaceX Dragon cargo spacecraft successfully docked with the International Space Station on January 12, bringing needed supplies to the six astronauts aboard.
January 12, 2015
Binary pulsar gives up secrets, then disappears
Scientists measure the space-time warp in the gravity of a binary star and find the mass of a fast-spinning pulsar -- just before the pulsar disappears.
January 8, 2015
Record-breaking X-ray flare from Milky Way’s supermassive black hole
A flare from our galaxy's core 400 times brighter than usual, in September, 2013. Over a year later, a second large flare. Now scientists are trying to explain why.
January 7, 2015
Astronomers find 8 new planets in Goldilocks zone
Two of the newly-discovered planets are the most similar to Earth of any known exoplanets to date.
January 7, 2015
