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.

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

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

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

Scientists have uncovered the origin of three mysterious signals coming from the centre of the Milky Way. For years, ...

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 ...

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

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

A subtle gravitational-wave “hum” from merging black holes may help settle the cosmic fight over how fast the universe is ...

For decades, astronomers have known that the universe is expanding. To determine how fast it is growing today, scientists calculate a value called the ...

Seen as it was 8.5 billion years ago, the galaxy shows that the early universe was harsher than scientists previously thought ...