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

Hollow atoms are special atoms with multiple missing electrons in their inner shells, while their outer shells are still ...

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 ...

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

Two international teams zoned in on a potential answer to a decades-long mystery surrounding ephemeral cosmic X-rays.

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

Safe and effective high explosives are critical to Lawrence Livermore National Laboratory's (LLNL) mission of stockpile ...

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.