by Astronomers may have seen the light from two black holes smashing into one another for the first time ever.
Black holes are completely dark and therefore invisible to light-detecting telescopes.
So far, the only way astronomers have been able to "observe" black holes colliding is by detecting the resulting gravitational waves.
Gravitational waves are ripples through spacetime, predicted by Einstein's general theory of relativity, that are created by extreme collisions between massive celestial objects, like black holes and neutron stars.
Source
Black holes are completely dark and therefore invisible to light-detecting telescopes.
So far, the only way astronomers have been able to "observe" black holes colliding is by detecting the resulting gravitational waves.
Gravitational waves are ripples through spacetime, predicted by Einstein's general theory of relativity, that are created by extreme collisions between massive celestial objects, like black holes and neutron stars.
Source
