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Wow! signal explained after 40 years?
New evidence suggests the well-known Wow! signal from 1977 - long thought by some to be a sign of extraterrestrial life - was in fact generated by a passing comet.
June 7, 2017
A planet hotter than most stars
Astronomers have discovered a Jupiter-like world hotter than most stars. The planet has a year only 1.5 days long and might have a tail like a comet.
June 6, 2017
How hard did it rain on Mars?
In a new study, geologists show there was rainfall on Mars in the past – and that it was heavy enough to carve out many of the features we see today on the planet’s surface.
June 6, 2017
Saturn’s moon may have tipped over
Scientists used Cassini spacecraft images to show that Saturn's moon Enceladus may have tipped away from its original spin axis by 55 degrees - more than halfway toward rolling completely onto its side.
June 4, 2017
Cool preview of Pluto craft’s next target
On June 3, July 10 and July 17, astronomers will be watching as tiny MU69 in the outer solar system - the New Horizons spacecraft's next target - occults or blocks the light from 3 different stars.
June 3, 2017
Your immune system in space
New video from NASA about studies looking at the effects of space travel on the human body's immune system.
June 3, 2017
LIGO’s 3rd gravitational wave detection
Albert Einstein hypothesized these ripples in the fabric of space-time a century ago. Now scientists have detected them for the 3rd time, from distant black hole collisions.
June 2, 2017
Juno at Jupiter: 1st science results
An update on the science coming out of the Juno spacecraft mission to the gas giant planet Jupiter - largest planet in our solar system - and some spectacular recent images.
May 30, 2017
Biggest 3D map of the universe yet
Astronomers from the Sloan Digital Sky Survey used the most luminous objects in the universe - quasars - to create their new 3D map of space.
May 30, 2017
Full-sphere, 360-degree ISS transit
Super cool, interactive image of a transit across the sky of the International Space Station, via Project Nightflight of Austria.
May 30, 2017
