The universe occasionally produces a huge surprise that proves physicists wrong, says Kip Thorne, who grew up in Logan, Utah, ...

New multiscale simulations help crack long-standing mysteries behind the enormous radio arcs generated when galaxy clusters ...

The fabric of spacetime may be frothing with gigantic gravitational waves, and the possibility has sent physicists into a tizzy. A potential signal seen in the light from dead stellar cores known as ...

New data reveals black hole jets can accelerate at speeds defying all physical laws, leaving astronomers without a clear ...

New observations of a far-flung galaxy cluster have left a group of scientists stumped as they ponder whether they’ve discovered a new form of physics. In their new paper, researchers Tessa Vernstrom ...

Galaxy clusters are the largest gravitationally bound structures in the universe, with each containing hundreds or even ...

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A collision between black holes that sent one spiraling away at million 3 mph. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Astronomers have ...

Announced by the LIGO collaboration in February 2016, the discovery of ripples in spacetime known as gravitational waves was momentous enough to merit the 2017 Nobel Prize in Physics. Now, another ...

New results from NANOGrav -- the North American Nanohertz Observatory for Gravitational Waves -- establish astrophysically significant limits in the search for low-frequency gravitational waves. This ...