A study shows spacecraft could intercept interstellar comets with today’s technology, unlocking new insights into material from beyond our solar system.

NASA has responded to claims – popularized by Harvard professor Avi Loeb – that the interstellar object 3I/ATLAS is a ...

In a groundbreaking discovery, researchers have detected the “sound” of a black hole being kicked through space, captured ...

The speed of light, c, is not just a very large number. In modern physics it is a structural constant: the conversion factor ...

In April 2019, a black hole collision between two black holes in a wildly uneven binary was finally detected by the ...

From early experiments with lanterns to Einstein’s revelations about space and time, the speed of light has proven to be far ...