These are big, literally cosmic questions, and astronomers continue to struggle to nail down the answers. Different ...

This lower measurement hints at a potential mismatch between what we see in the distant universe (measured by cosmic ...

The temperature of elementary particles has been observed in the radioactive glow following the collision of two neutron ...

Astrophysicists have, for the first time, measured the temperature of elementary particles in the radioactive afterglow of a neutron star collision, which led to the formation of a black hole. This br ...

When we go backwards in time through the history of the cosmos, the distances and volumes shrink, while the average energy ...

Webb's high-resolution instruments uncover distant objects, enabling studies of early stars, galaxies, and habitable ...

where they can be scattered or absorbed during interactions with photons of the ubiquitous cosmic background radiation. All ...

Our most powerful telescopes have revealed that the cosmos is surprisingly simple on the largest visible scales. Likewise, ...

The Big Bang theory suggests that the universe began as a hot, dense point, expanding into the cosmos we observe today.

Granite countertops are durable and aesthetically pleasing, but do they also emit radiation? Here's what we know about this ...

The temperature of elementary particles has been observed in the radioactive glow following the collision of two neutron stars and the birth of a black hole. This has, for the first time, made it ...