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, which delivered Hubble to space 35 years ago, and it's no secret why ...

NASA's Hubble Space Telescope image of the Coma galaxy cluster (main) and stock image of the James Webb Space Telescope. The JWST has confirmed the Hubble's estimates of the rate of expansion of ...

New observations from the James Webb Space Telescope suggest that a new feature in the universe—not a flaw in telescope measurements—may be behind the decadelong mystery of why the universe is ...

They used the Hubble Space Telescope and the W. M. Keck Observatory in Hawaii to capture and study Altjira. Two new Hubble observations added to a dataset that spans an impressive 17 years.

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, which delivered Hubble to space 35 years ago, and it's no secret why ...