Predicted by Einstein and dismissed as undetectable, gravitational waves were finally heard in 2016. Now, with observatories ...

Gravitational waves stretch and squeeze the fabric of space and time itself. When space/time is squeezed, pulsar pulses ...

The Big Bang model begins with a point of infinite density where the laws of physics break down. This is a deep theoretical problem that suggests the beginning of the Universe is not fully understood, ...

These black holes are the most distant and stable objects we know. Using a technique called very long baseline interferometry ...

Astronomers in Australia picked up a strange radio signal in June 2024 — one near our planet and so powerful that, for a ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

The study went on to note that a cause for the pulse could have been that it was struck by a small piece of space rock, known ...

NASA has released a breathtaking new image of the Andromeda Galaxy, our closest galactic neighbor. Also known as Messier 31, or M31, Andromeda is located about 2.5 million light-years from Earth.

A newly discovered radio halo, 10 billion light-years away, reveals that galaxy clusters in the early universe were already steeped in high-energy particles. The finding hints at ancient black hole ...

Supermassive black holes usually lurk unseen, but when an unlucky star drifts too close they ignite titanic outbursts ...