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

Uncover the mystery of Omega Centauri: a stellar-mass black hole is responsible for the fast movement of nearly ten million ...

New research suggests that a troubling disparity in the rate of expansion of the universe, known as the Hubble constant, may arise from the fact Earth sits in a vast underdense region of the cosmos.

Now, a group of scientists used Webb Space Telescope data to solve a mystery raised by a veteran ... In 2003, the Hubble Space Telescope detected what appeared to be the oldest known planet ...

New data confirms Hubble's finding and refutes current theories of planet formation in the universe’s early days. Thanks to its incredible sensitivity and sharp resolution, NASA’s Webb Space Telescope ...

A phenomenon called gravitational lensing turned a galaxy into a "hall of mirrors of cosmic proportions," allowing for the discovery.

Douglas Adams, The Hitchhiker's Guide to the Galaxy Observatories like the Hubble Telescope and the James Webb Space Telescope offer humanity the power to see things farther away than ever before.

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

Saturn’s rings are among the most glorious, stunning, and well-studied features in the Solar System. However, their age has ...

Why it's so special: This iconic montage features images of Jupiter, Saturn, Uranus and Neptune captured between 2014 and 2024 as part of the Hubble Space Telescope's Outer Planet Atmospheres ...