Recent surveys hint that the rate of cosmic expansion changes dramatically over time; if that's true, then the universe could ...

Looking Up is transcribed using a combination of AI speech recognition and human editors. It may contain errors. Please check the corresponding audio before quoting in print. Dean Regas: Astronomers ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Whether the universe will “end” at all is not certain, but all evidence suggests it ...