The JAMA analysis found that, between 2017 and 2024, the rate of vitamin K shot refusal has risen nearly 80%, with the ...

A faint, ancient flash of light detected by the James Webb Space Telescope (JWST) has broken the record for the most distant ...

Previously, the most ancient supernova ever confirmed dated back to when the universe was 1.8 billion years old.

The telescope observed a supernova that exploded when the universe was only 730 million years old, along with its faint host galaxy.

NASA’s Webb Telescope detects the earliest known supernova, GRB 250314A, 730 million years after the Big Bang, capturing its host galaxy and providing unprecedented early-universe observations.

Thanks to sufficient advance warning, the James Webb Space Telescope was able to study the earliest supernova by far. A gamma-ray burst had announced it.

A team of astronomers including George Washington University physics Ph.D. student Eliza Neights recorded an extraordinary ...

Data from the James Webb Space Telescope has identified the universe’s most ancient supernova to date. This milestone not only redefines astronomical records but clarifies how the universe’s first ...

"We might lose the ability to observe about 30% of the faintest galaxies. We are at the point of starting to be able to see ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

The James Webb Space Telescope has found compelling evidence for "monster stars" — gigantic, primordial stars that existed in the early universe.

Direct chemical signatures in a distant galaxy captured by JWST confirm the presence of massive primordial stars, resolving ...