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

There's always a touch of melancholy when a chapter that has absorbed years of work comes to an end. In the case of the ...

A striking reality faces modern cosmology: two of the most advanced telescopes ever built now agree on a result that the standard cosmological model cannot explain. Webb’s confirmation of the Hubble ...

An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be ...

The Red Spider Nebula showcases the beauty of a dying star. NASA’s Hubble shows the nebula in visible light whereas the Webb ...

A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

There's always a touch of melancholy when a chapter that has absorbed years of work comes to an end. In the case of the Atacama Cosmology Telescope ...

This is the light echo of the Big Bang, the first light that freely moved through the universe. This relic is crucial to our ...

The discovery of strange, ultra-red objects—especially the extreme case known as The Cliff—has pushed astronomers to propose ...

In 1999, Belgian physicist Chris Van Den Broeck implemented a minor alteration to Alcubierre’s concept by shrinking the ...