Jesse Emspak

Former NASA astronaut Pamela Melroy recently shared her experiences and insights about spaceflight and exploration.

For years, many astronomers thought planets around red dwarfs were probably uninhabitable. But recently, the thinking has begun to change.

Small 'nanoflares' erupting from the sun might be the key to unlocking a cosmic mystery, according to a new study.

Light from a radioactive metal forged inside a supernova blast could prompt a rethink of how some star explosions occur. See the latest discovery from the supernova SN 2014J.

The change in the tilt of the magnetic field of a pulsar, in this case, the one in the famous Crab Nebula, has been observed for the first time.

An eruption of matter from a quasar could show how galaxies shed weight.

An Old Idea Gives Telescopes A New Twist

A look at zinc isotopes in moon rocks is more evidence of the moon's cataclysmic birth.

A star that moves at record-breaking speed could help astronomers test Einstein's theory of general relativity.

The theory suggests inanimate objects are alive - which others call bunk.