Lightspeed travel is a popular concept in sci-fi and pop culture, but it's not a technology we are likely to see anytime soon ...

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

The Hubble Space Telescope has captured two tangled galaxies, whose interactions have caused knots to form in the ...

This image from the NASA/ESA Hubble Space Telescope shows a pair of quasars (known as J0749+2255) that existed when the ...

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 ...

A recently shared image of a distant galaxy surrounded by three concentric rings challenges our understanding of galactic ...

An international team of astronomers has identified three ultra-massive galaxies—each nearly as massive as the Milky ...

This Hubble Space Telescope image captures a triple-star system ... counteracting gravity and affecting the formation of ...

This NASA/ESA Hubble Space Telescope image features NGC 1672, a barred spiral galaxy located 49 million light-years from ...

There are monstrous objects at the heart of every large galaxy — black holes that are millions or even billions of times more ...

NASA This image showcases galaxy IC 2163 and NGC 2207 with cold dust glows throughout the area. They also depict spiral arms ...