What new methods can be developed in the search for extraterrestrial intelligence (SETI)? This is what a recent white paper ...

A new analysis of BL Lacertae by NASA’s Imaging X-ray Polarimetry Explorer sheds light on the emission mechanisms of active ...

These processes can be monitored by measuring the high-energy electromagnetic radiation and particles that they emit including x-rays, ultraviolet light and gamma rays.

This stunning Hubble view of spiral galaxy UGC 11397 captures more than graceful arms and glowing stars—it hides a ravenous ...

The Andromeda galaxy, also known as Messier 31 (M31), is the closest spiral galaxy to the Milky Way at a distance of about ...

A faint radio glow reveals a million-light-year halo enveloping one of the earliest galaxy clusters, hinting that energetic ...

An international team of astrophysicists have uncovered a possible origin of fast X-ray transients (FXTs) — mysterious, ...

The discovery marks the most distant mini halo ever found, doubling the distance of any previously known example. It offers ...

NASA has released a breathtaking new image of the Andromeda Galaxy, our closest galactic neighbor. Also known as Messier 31, or M31, Andromeda is located about 2.5 million light-years from Earth.

A microquasar belonging to our Milky Way galaxy has set records by generating cosmic rays with energy levels never before ...

Scientists from UCL and the University of Cambridge have revealed that "space ice"—long thought to be completely ...