In 1974, astronomers sent a call out into the cosmos from a massive telescope in Puerto Rico. The anniversary of the message brings reflections on a new missive to the stars and grief for a lost ...

A group of international astronomers have discovered three mysterious, ultra-massive galaxies in the early universe. The galaxies – systems of stars, gas, dust, and dark matter – appear in a view from ...

NASA's Nancy Grace Roman Space Telescope is one giant step closer to unlocking the mysteries of the universe. The mission has ...

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

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

James Webb Space Telescope, NASA's latest and most advanced space observatory, has continued to capture breathtaking images ...

Hubble unexpectedly finds double quasar: This image from the NASA/ESA Hubble Space Telescope shows a pair of quasars (known ...

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 ...

In astrophotography, I would say 70% is technique and 30% is the equipment. I spent a lot of time learning the technique behind those incredible images of the galaxies, Zubuyer says ...

ESA officials said in the statement, which accompanied the new Hubble image. Related: Hubble Space Telescope tells a starry ...

This Hubble Space Telescope image captures a triple-star system, which can host potentially-habitable planets. Our nearest ...