Researchers look for high-energy light from gravitational-wave candidates in LIGO-Virgo-KAGRA Observation Runs with India’s AstroSat-CZTI

A new publication introduces the rapidly growing field of multi-messenger gravitational lensing, which combines gravitationally lensed signals, like gravitational waves, light or neutrinos to observe events in the universe.

^{Snapshot of simulation showing two black holes colliding with each other. [Image Credits: Wikimedia Commons]}

Astronomers detect gravitational waves from the merging of neutron stars and black holes, but no electromagnetic waves.