John Grunsfeld has a model of the Hubble Space Telescope on his bookshelf. It's right next to a model of a NASA space shuttle ...

The Hubble Space Telescope has been one of NASA's most successful flagship missions, recently celebrating 35 years in space.

NASA's newest space telescope, on a mission to study origins of universe, snapped incredible images of the cosmos 2 months ...

Astronomers have spotted around a dozen of these weird, rare blasts. Could they be signs of a special kind of black hole?

The most recent measurement of a nearby galaxy cluster is deepening a disagreement about how fast the universe is expanding — ...

During its 35 years of orbiting the Earth, the Hubble Space Telescope has transmitted endless streams of magnificent images, confirmed the existence of "dark matter," and helped track a vagabond ...

When the first images from the James Webb Space Telescope were released in 2022, one in particular became instantly iconic: a striking orange and blue view of the Carina Nebula, affectionately known ...