Hubble Space Telescope

The Hubble Space Telescope has been at work for almost three decades, but it's still learning new skills — like how to squeeze an incredible 15,000 galaxies into a single image.

Astronomers have detected water vapor and evidence of exotic clouds in the atmosphere of a Neptune-mass planet known as HAT-P-26b.

Bright auroras light up Uranus' atmosphere in two newly released photos, which combine observations by NASA's Hubble Space Telescope and the agency's Voyager 2 probe.

Hubble snapped the photo on Monday (April 3), just four days before Jupiter comes into "opposition," forming a straight line with Earth and the sun (with Earth in the middle).

The universe really is expanding faster than scientists had thought, new research suggests.

NASA's Hubble Space Telescope has detected several comets diving toward a young star about 95 light-years from Earth.

A striking new image from the Hubble Space Telescope captures an extremely detailed view of the galaxy NGC 4696 and the tangled, thread-like filaments stretching from its bright galactic core.

Hubble Space Telescope captured this image of the Red Spider Nebula, floating hauntingly inside the constellation of Sagittarius.

More than a trillion galaxies are lurking in the depths of space, a new census of galaxies in the observable universe has found — 10 times more galaxies than were previously thought to exist

NASA's Hubble Space Telescope has seen planet-size cannonballs of hot gas whipping past a dying star, but the origin of these plasma balls remains a mystery.