black holes
-
Behold, Our Galaxy Visualised in Gravitational Waves
No space-based gravitational wave observatory exists…yet. But that hasn’t stopped a team of astronomers from demonstrating how the gravitational universe might look, using simulated data to create a “synthetic gravitational sky.” Gravitational waves are perturbations in spacetime that were predicted by Einstein in his theory of general relativity; as Einstein described them, the waves are…
-
Massive Black Holes Littered the Early Universe, Simulation Suggests
Since the gravitational waves predicted by Einstein were first detected in 2015, astrophysicists have been pondering the gravitational wave background — the cumulative undulations of these spacetime ripples as they cross the cosmos.
-
Team Behind First Black Hole Image Set to Announce ‘Groundbreaking’ Milky Way Discovery
The Event Horizon Telescope Collaboration has made a significant discovery about the Milky Way, but we don’t know what it is yet. Members of the team are set to announce the finding in a press conference May 12, hosted by the National Science Foundation. Simultaneous press briefings are planned in Germany, Mexico, Japan, China, Chile,…
-
There Are 40,000,000,000,000,000,000+ Black Holes in the Observable Universe, Says New Estimate
A team of astrophysicists has calculated the number of stellar-mass black holes in the observable universe to be 40 quintillion, accounting for 1% of the total ordinary matter in the universe.