For practically as long as NASA's Hubble Space Telescope has circled Earth, astronomers have wanted to use it to see a comet as it's breaking apart. Many researchers have proposed ...

Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space ...

These three exoplanets are among the least dense ever found, and all attempts to probe their atmospheres have been blocked by a mysterious smog.

NASA’s Hubble Space Telescope has captured some of the most detailed images ever recorded of comets breaking apart in space, offering a direct window into the fragile structure of these ancient icy ...

NASA’s Hubble Space Telescope got a rare look at the aftermath of two cosmic collisions — and helped scientists solve a decades-old mystery. Many years ago, scientists saw a dense, bright spot near a ...

Two telescopes have captured images of the Cat's Eye Nebula, revealing how a dying star shed layers of material in violent ...

Astronomers have found a planet-forming disk that looks like a solar system on steroids. New images from NASA's Hubble Space Telescope have revealed an enormous, oddly shaped disk of gas and dust ...

Hubble identified the largest known protoplanetary disk, revealing a turbulent, chaotic environment with material extending above and below the disk, offering new insight into planet formation.

Kepler-51d is a giant, ultra-light “super-puff” planet wrapped in an unusually thick haze that’s blocking scientists from ...