Astronomers today have been unable to tally up the total matter produced during the Big Bang 13.6 billion years ago. […] ...

Distant quasars may hold the key to spotting elusive gravitational waves—and revealing hidden dimensions of the universe.

Artist's depiction of supermassive black holes generating the universe's gravitational wave background. (Image: Olena Shmahalo for NANOGrav) In 2023, a team of scientists belonging to the NANOGrav ...

Scientists have found a neutrino that could come from a gamma-ray burst, an active black hole or a collision between a cosmic ...

Relic Gravitons, by Massimo Giovannini of INFN Milan Bicocca, offers a timely and authoritative guide to one of the most ...

Astrophysicist Jeremy Darling from the University of Colorado Boulder is on a quest to find a new way of measuring the ...

University of Colorado Boulder astrophysicist Jeremy Darling is pursuing a new way of measuring the universe's gravitational wave background -- the ...