Discover how iron's opacity in the sun challenges scientific models, and how researchers are working to resolve the ...

Black holes power some of the most energetic phenomena in the known universe, but could they ever power an advanced human civilisation?

Stellar mass black holes, a few to dozens of times the mass of the sun, form from collapsing massive stars. Supermassive black holes, on the other hand, are millions to billions of times more ...

Supermassive black holes are the densest objects in the universe, with masses reaching billions of times that of the sun. Sometimes a galaxy's supermassive black hole "wakes up" due to a sudden ...