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Slow spin of older stars key in the search for life
This is "gyrochronology," from Greek words gyros (rotation), chronos (time). It can help identify distant planets old enough for complex life to have evolved.
January 5, 2015
How to make an Earth
New evidence suggests that the basic ingredients for our Earth would likely go into making distant rocky exoplanets, orbiting other stars, as well.
January 5, 2015
Super-Earths may have long-lasting oceans
Planets with two to four times the mass of Earth are even better at establishing and maintaining oceans than our Earth, according to new research.
January 5, 2015
Cool animation shows Venus in evening sky in 2015
Watch 238 days of the sky's brightest planet, Venus, now back in your evening sky. You can also see Mercury, Mars and Jupiter enter the scene at various points.
December 31, 2014
Amazing 44-second meteor might be space debris reentry
Video of an impressive and slow meteor seen over Puerto Rico on December 28. It might be a Falcon 9 rocket body falling from orbit.
December 31, 2014
Dawn spacecraft starts approach toward Ceres
The spacecraft will arrive at Ceres, a Texas-sized dwarf planet never before visited by a spacecraft, on March 6, 2015.
December 30, 2014
Tiny galaxy is Milky Way’s newly-discovered neighbor
A tiny, isolated dwarf galaxy almost 7 million light years away, with only one ten-thousandth of the mass of our Milky Way.
December 26, 2014
ISS astronauts send Christmas greetings to the world
Expedition 42 Commander Barry Wilmore and Flight Engineer Terry Virts send greetings and talk a little about their own Christmas Day in space.
December 25, 2014
Wonderful evening sky! Best moon and Venus photos
Showing once again that we all live under one sky ... the moon and Venus on December 22, 2014.
December 22, 2014
Comet Finlay is in outburst!
With a small 'scope or large binoculars, you can catch Comet Finlay. It'll be near Mars on December 23 and 24. Cool photo opportunity for those equipped to catch it!
December 18, 2014
