For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe expanding right ...

Astrophysicists propose a new “stochastic siren” method using the gravitational-wave background from black hole mergers to ...

Astronomers used AI to search 35 years of Hubble data and discovered over 1,300 rare cosmic anomalies hidden in plain sight.

A stunning new Hubble image reveals the most detailed look yet at the Egg Nebula, the youngest and closest pre-planetary nebula to Earth.

We have known for several decades that the universe is expanding. Scientists use multiple techniques to measure the present-day expansion rate of the universe, known as the Hubble constant. These ...

New Hubble Space Telescope imagery of the Saturn show it's 'ring spokes' in orbit around the gas giant planet. Credit: ...

Drawing together leading experts from across the field, an international collaboration of cosmologists has created a unified approach for measuring the value of the Hubble constant. Published in ...

Comet 41P slowed its rotation to a halt and then began spinning in the opposite direction, surprising scientists.

For centuries, one of the biggest challenges in astronomy has been our planet’s atmosphere. While it helps distribute heat from the Sun and provides the pressure and oxygen we need to survive, it gets ...

WASHINGTON — The Hubble Space Telescope marked its 35th anniversary this week and NASA celebrated by releasing a series of stunning new photos from the observatory. With nearly 1.7 million ...