Could time itself actually explain our universe's expansion? Our current cosmological model—known as lambda cold dark matter, ...

The Hubble Space Telescope has been used to study NGC 1052-DF2 — a galaxy that is lacking dark matter. Credit: NASA's Goddard Space Flight Center ...

Observing the interactions between dark matter and so-called "dark photons" during a period after the Big Bang called the "cosmic dawn" could help shed light on the universe's most mysterious and ...

By looking at light from distant exploding stars called supernovas, in 1998 astronomers discovered the universe isn’t just expanding – its expansion is speeding up. But what’s behind this acceleration ...

Astronomers using the James Webb Space Telescope identified over 40 stars in a galaxy 6.5 billion light-years away, thanks to ...

Some of this stuff is known as mysterious dark matter, others are things like dark comets, which as their name suggests, are far more difficult to see from Earth than something like Tsuchinshan-Atlas.

Astronomers used JWST and gravitational lensing to spot 44 individual stars in a galaxy 6.5 billion light-years away.

Astronomy in Action: This striking image features a relatively rare celestial phenomenon known as a Herbig–Haro object. This ...

A controversial new model is presenting challenges to the long-theorized existence of mysterious dark energy throughout our ...

The Hubble Space Telescope is nearing its 35th anniversary and skywatchers can celebrate the mighty telescope with a ...