The galaxies, each as vast as the Milky Way, are baffling because most scientific models for galaxy evolution suggest ...

Roughly 400,000 years after the Big Bang, the universe cooled just enough to allow photons to escape from the primordial ...

Astronomers have identified three ultra-massive galaxies -- nearly as massive as the Milky Way -- already in place within the first billion years after the Big Bang. This surprising discovery was made ...

While the Hubble Space Telescope orbits Earth, the JWST orbits the sun with a keener eye for peering into deep space. “It’s more of a complement to the Hubble than it is a replacement,” said Andrew ...

All the major elements of NASA’s next flagship space telescope are now under one roof as NASA says its development remains on cost and schedule.

The Hubble Space Telescope has captured imagery of the most distant single star found yet. It took the light from the star 12 ...

The Nancy Grace Roman Space Telescope's Wide Field Instrument provides a field of view 100 times greater than the Hubble ...

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

Astronomers have used a range of telescopes, including Hubble, to watch as particles dance around a neutron star collision ...

The skies over Iowa recently have been filled with Northern Lights on many nights and a comet, C/2023 A3 (Tsuchinshan-ATLAS) ...

NASA’s Europa Clipper mission risks becoming one of the most expensive and difficult in the history of the space agency. By ...

Despite the lack of a dedicated mission to the planet, scientists have learned plenty through ground observations and space ...