Despite sounding like something out of pulpy '50s sci-fi, 'space lasers' are real – and astrophysicists have now spotted the ...

Discover the fascinating world of hydroxyl megamasers, powerful cosmic lasers revealing secrets of distant galaxies and the universe's evolution.

Astrophysicists have identified the brightest, most distant 'space laser', or gigamaser, originating from a galactic collision 8 billion light-years away.

Earthlings aren't the only ones safe from a city-wrecking-size asteroid. Future lunar inhabitants won't have to worry about a ...

An extraordinarily rare, gravitationally lensed supernova may offer a powerful new way to measure the universe’s expansion rate.

Scientists have discovered the origin of three mysterious signals coming from the centre of the universe, showing that a ...

Astronomers produced the most complete map of the center of the Milky Way, which can provide insight into how stars and planets are formed.

Using gravitational waves as a measure of the universe's rate of expansion could solve the biggest headache in physics, the ...

Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...

Ripples in the fabric of space-time called gravitational waves may be the key to solving the Hubble tension — one of the biggest nagging problems in physics.

India is building LIGO-India to detect gravitational waves from colliding black holes billions of light years away. How will ...

Some stars don’t just shine; they also manufacture the raw ingredients of future worlds.