In the vast, uncharted realms of the cosmos, NASA’s telescopes have detected an eerie and peculiar celestial object. This enigmatic image, already shrouded in mystery, has only grown more perplexing, ...

Researchers continue to build on a body of evidence for a fragmented comet that is thought to have exploded over Earth almost 13,000 years ago, which may have had a role in the disappearance of ...

CC0 Usage Conditions ApplyClick for more information. Nearly 100 years ago, scientists detected the first signs of cosmic rays—subatomic particles (mostly protons) that zip through space at nearly the ...

The John N. Bahcall Lecture Series Presenter: Robert Kirshner, Clowes Professor of Science, Harvard University Exploding stars halfway across the universe show that the expansion of the universe is ...