The Hubble Space Telescope has sent back a gorgeous new view of one of our nearest galactic neighbors, which is full of ...

Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

The black hole examined by the team is no small cosmic object. It is more than a billion times the mass of our Sun. Despite ...

A new study is helping scientists clarify how clouds can affect climate, while also dimming the prospects for some proposed geoengineering ideas.

Stars are born from vast clouds of gas and dust, known as nebulae, that are scattered throughout most galaxies. Over thousands to millions of years ...