In a recent opinion article, marine scientists and electrochemists listed a number of reasons why it's unlikely that metallic ...

A novel theory suggests that the current expansion rate of the universe is not fixed, but was in fact quite different in the ...

It's a new window into the first star explosions.

"Cosmic archaeologists" have discovered an iron-deficient second-generation star, which provides evidence of how ancient ...

Dimensions beyond the four we’re familiar with could solve a host of problems in physics and cosmology. Columnist Leah Crane ...

Astronomers may have found an exciting new clue about dark energy—the mysterious force driving the universe’s accelerating expansion. They discovered an extraordinarily bright supernova from more than ...

Scientists studying a mysterious effect called cosmic birefringence—a subtle twist in the polarization of the universe’s oldest light—have developed a new way to reduce uncertainty in how it’s ...

An international collaboration, including Northwestern University, has reached a critical milestone in the search for dark matter, the mysterious substance that makes up about 85% of all matter in the ...

Astronomers have uncovered a hidden cosmic web of galaxies and gas by mapping hydrogen light from the early universe.

Still in its original galaxy, a rare holdout from the second generation of stars sheds new light on the origins of the elements—and how massive supernovae reshaped the cosmos ...

The vast majority of the astronomy world has spent the past century studying the "cosmic concrete" that holds our galaxy and ...

Although dark matter makes up most of the mass in our universe, it has never been directly observed. To hunt for lighter dark matter and other rare ...