The 1990s delivered a surprise to astronomers: the universe wasn't just expanding—it was speeding up. This late-time ...

Cosmologist Katie Mack breaks down what the latest findings about dark energy mean for our universe’s future. Either way, it ...

is that the Big Bang created not just our universe but also a twin universe where time flows in reverse. Inhabitants of this ...

At the quantum level, the past and the future are indiscernible. That could have profound effects on the world we can see.

The new paradigm would imply that the current expansion of the universe could eventually reverse into a “Big Crunch”. Other cosmologists are more cautious, not least Carl Sagan, who wisely ...

Recent research from the dark energy spectroscopic instrument (Desi) team indicates that dark energy, which drives the universe's expansion, is weakening. This significant finding challenges the ...