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.”
A rapidly spinning dead star’s wacky fluctuations in brightness are due to the extreme environment surrounding the object, according to a team of astronomers who observed it.
Astronomers transfixed the public in April 2019 when they released the first-ever image of a black hole, produced by radio wave data from a collaboration of telescopes around the world known collectively as the Event Horizon Telescope.