Sydney scientists fixed NASA’s James Webb Space Telescope without ever leaving Earth. Using AI-powered software called AMIGO, ...

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

The complex dance of two black holes locked in a doomed orbit has been revealed in a first-of-its-kind direct radio image.

"It's like looking for candlelight in close vicinity to a flashlight that's blazing toward us." Astronomers have discovered extraordinarily powerful X-ray jets blasting from two supermassive black ...

When space telescopes blazed with high-energy radiation for hours earlier this year, astronomers suspected that they were witnessing something special. The cosmic flash GRB 250702B was no ...

Scientists have identified a new class of cosmic explosions, dubbed "extreme nuclear transients" (ENTs), that represent the most energetic events observed in the universe, perhaps since the Big Bang ...