Thanks to a theory put forward by Albert Einstein over 100 years ago and a happy coincidence, astronomers have discovered ...

Astronomers from Seoul National University, South Korea and elsewhere report the detection of 62 new luminous quasars as part ...

An orange quasar is seen in space© Pike-28/Shutterstock A quasar in deep space is seen surrounded by stars and space dust© NASA images/Shutterstock ...

About 5 billion light-years away from where you're sitting, in one of the most massive galaxies on record, there exists an ...

The quasar 0957+561 imaged with the Hubble Space Telescope, with a field full of distant galaxies, including the lensing galaxy YGKOW G1 (yellow, between the two quasar images).

An international team of astronomers led by Matus Rybak (Leiden University, Netherlands) has proven, thanks to accidental ...