From a particle smasher encircling the moon to an “impossible” laser, five scientists reveal the experiments they would run ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

Current physics is speeding toward a breaking point, as astronomers confirm that the Hubble tension in new data.

For over two decades, cosmologists have believed that the universe is expanding at an accelerating pace, driven by a ...

For centuries, Europeans thought that eternal daylight saturated the cosmos. The shift to a dark universe has had a profound ...