The Milky Way could have many more satellite galaxies than scientists have previously been able to predict or observe, ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

NASA astronomers have confirmed what may be the greatest discovery of the era. They found a significant reservoir of water that was hidden in the cosmos, and that surrounds a quasa ...

Astronomers claim to have found new evidence supporting a controversial observation that our galaxy is residing in an ...

Baryon acoustic oscillations (BAOs) – the “sound of the Big Bang” – support the idea of a local void. Gabriela Secara, ...

Astronomers using the Green Bank Telescope spotted surprisingly cold, dense hydrogen clouds embedded inside the Milky Way’s ...

According to a provocative new study, that might just be our cosmic address. This idea is meant to solve one of the biggest ...

Are we living in a cosmic void? New theory suggests our galaxy sits in a giant hole warping the universe's expansion.

Astronomers have studied the globular cluster 47 Tucanae extensively, but still have many questions. It may have an ...

The Helix Galaxy, located 42 million light years away, is an unusual object as it is both a polar ring and a lenticular ...

Scientists believe the Milky Way contains up to 400 billion stars and at least as many planets. The largest galaxy known, IC 1101, has more than 100 trillion stars. Step outside on a clear night and ...

The Hubble Space Telescope has found evidence of a "wandering" black hole about 5000 light years away in the Milky Way galaxy ...