Astronomers used James Webb Space Telescope data to determine the density of the universe's most mysterious "stuff." ...

There are plenty of awesome objects in the universe, made more marvelous by scientists’ ability to image and understand the laws and processes that make them possible. Each year, researchers make new ...

The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark ...

So cosmologists feel confident in modelling the universe using the “maximally symmetric” description of space-time in Einstein’s theory of general relativity. This symmetric vision for the universe, ...

Our universe appears to be expanding about eight percent faster than initially assumed possible, according to new observations from the James Webb Space Telescope. There has been a long-established ...

"This work highlights Euclid’s remarkable ability to detect and characterize dwarf galaxies, enabling a comprehensive view of galaxy formation and evolution across diverse mass scales, distances, and ...

Though sci-fi movies would have us believe that space is incredibly cold — even freezing — space itself isn't exactly cold. In fact, it doesn't actually have a temperature at all. Temperature is a ...

NASA's advanced space observatory known as SPHEREx is on its cosmic journey to solve some of the universe's biggest mysteries. The space telescope, which NASA has spent years developing, launched ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. CREDIT: ESA/Hubble & NASA, L. C. Ho, D. Thilker. Get the Popular Science daily ...