As its interplanetary odometer ticked off 45.22 kilometers (28.10 miles) on October 11, it graciously surpassed the record ...

On Sept. 28, the spacecraft began to use its propulsion system nearly continuously, pausing just once each week to check in ...

James Webb reveals how powerful winds and extreme temperature differences create an unusual atmospheric bulge on the giant ...

Japanese space agency JAXA has successfully launched a mission to visit the moons of Mars — and bring a sample back to Earth.

The White House made a promise to release every file connected to UFOs and extraterrestrials, leading many to believe they ...

Weather maps of distant planets are a step closer after the James Webb Space Telescope distinguished hotter and cooler ...

The NASA administrator said the uptick in reported unidentified anomalous phenomena (UAP) sightings in recent years could be ...

Astronomers using the James Webb Space Telescope have discovered that a distant alien planet's atmosphere is surprisingly lopsided. Located 1,300 light-years away, the scorching gas giant WASP-17b ...

What if we could turn the Red Planet green? The idea of Mars made verdant with grasses, trees and other Earthly life-forms ...

Astrophysicists and astrobiologists are challenging the idea that Earth is the ultimate standard for life, urging telescope ...

The James Webb Space Telescope has observed water clouds on an alien world for the first time, and it's not a planet. Credit: ...

A mysterious chemical signal in old Hubble observations may point to a planet that formed after its star died. Astronomers suspect the world grew from material shed by the aging star, offering a ...