Spacewalking astronauts repaired and upgraded the famed Hubble Telescope during five missions from 1993 to 2009. Here's a ...

Webb has two decades ahead of it, but it's already captured some stunning images. Here are 35 of our favorites.

The Hubble Deep Field image, captured by the Hubble Space Telescope, is widely regarded as NASA's most significant contribution to space telescope imagery. This groundbreaking image revealed thousands ...

Amid harsh cuts, the Trump administration has proposed canceling the nearly ready-to-launch Nancy Grace Roman Space Telescope ...

NASA’s Hubble Space Telescope has spotted a magnetar a supermagnetic neutron star speeding across our galaxy. Its name? SGR ...

Roughly 100 years ago, American astronomer Edwin Hubble discovered that “spiral nebulae” were actually independent galaxies, located millions of light years away from us. He also figured out that ...

NASA’s Hubble Space Telescope reveals a longer day on Uranus than previously thought, correcting data from 1986 and reshaping ...

A newly released image from the Hubble Space Telescope shows the charming Sombrero Galaxy, named for its resemblance to the ...

When I was in grade school I was fascinated by the world’s largest telescope: the 200-inch-diameter Hale Reflector on Palomar Mountain near San Diego.

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

The Hubble Space Telescope captured an image of a star and a spiral galaxy, both in the constellation Virgo. But the photo is an optical illusion.

Just about everyone has heard of NASA’s Hubble Space Telescope — not too surprising considering that it has been with us for ...