You won’t notice the sunrise arrive 1.33 milliseconds sooner, but to precision atomic clocks, it will be obvious ...

Astronomers have discovered potentially the most massive black hole ever detected. The cosmic behemoth is close to the ...

To find out how fast the Earth is spinning at all, you need to find a reference frame in which, ideally, nothing is moving.

Tuesday was one of the shortest days on record. An astronomer explains why - You won’t notice the sunrise arrive 1.33 ...

Earth’s prevailing winds are fastest in the northern hemisphere winter, but slowest from June to August, so the summer months ...

Across the cosmos, heavier galaxies tend to host heavier black holes, a pattern known as the M–σ relation. But the Cosmic ...

The black hole, spotted 5 billion light-years away in the Cosmic Horseshoe, could be the most massive ever found.

A sleeping ultramassive black hole, 36 billion times the Sun’s mass, is warping light 5 billion light-years from Earth.

About 5 billion light-years away from where you're sitting, in one of the most massive galaxies on record, there exists an astonishing black hole. It was only just measured by scientists who managed ...

Astronomers may have just discovered the biggest black hole ever detected. Hidden five billion light-years away inside a ...