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Tiny, ultracool star is super stormy
"If we lived around a star like this one, we wouldn't have any satellite communications. In fact, it might be extremely difficult for life to evolve at all ..." said Harvard astrophysicist.
November 20, 2015
Texas telescope to explore dark energy
A mysterious and largely unknown dark energy is thought to pervade our universe. A telescope in West Texas is poised to survey a million galaxies, to explore it.
November 20, 2015
How a year in space changes bodies
Astronauts are spending a year aboard the International Space Station, and researchers are looking at what happens to their bodies at the molecular level.
November 20, 2015
Most Earthlike exoplanet is uninhabitable
Kepler-438b - 470 light years from Earth - ranks highest on the Earth Similarity Index. But radiation from its violent parent star makes it uninhabitable.
November 18, 2015
Mars rover heads for active dunes
No Mars rover has yet visited a sand dune, as opposed to smaller sand ripples or drifts. Curiosity will visit actual Mars dunes in the next few days.
November 17, 2015
Astronomers take a galaxy’s pulse
Astronomers had not considered the effect of variable stars on the light of distant galaxies. A new technique lets them measure the galaxies' "heartbeats."
November 16, 2015
Zombie star eats an asteroid
What's left in a solar system whose central sun has become a white dwarf? This study shows what our own solar system might become, billions of years from now.
November 16, 2015
Supersonic winds hurtle around exoplanet
The winds move at 2 kilometers per second. That's about 7 times faster than the speed of sound and 20 times faster than any winds ever recorded on Earth.
November 16, 2015
Asteroid buzzed Earth this weekend, hours after discovery
Discovered on Saturday, closest just hours later, this small asteroid came closer to Earth than weather and television satellites orbit.
November 15, 2015
Mystery object WTF has come home
It was the first time astronomers knew just when and where a piece of space debris would reenter Earth's atmosphere. It was last night, over the Indian Ocean.
November 14, 2015
