Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

Seeking endorsements for her new book, Chanda Prescod-Weinstein finds herself staring at fundamental questions of space, time ...

The LSST camera at the Vera C. Rubin Observatory has released its jaw-dropping first images, each capturing 45 times the area of the full moon in one shot. Over the next ten years, this cosmic giant ...

Dark energy —the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the ...

Watch Pop Mech ’s Jackie Appel reveal the story of how two men from New Jersey named Arno Penzias and Robert Wilson made one of the most important discoveries in the history of astronomy—by accident.

The formation of Mercury remains an unsolved mystery. The planet closest to the sun has a disproportionately large metallic ...

The aurora borealis has been remarkably bright recently. Space weather physicist Tamitha Skov reveals what's going on and how ...

Physicists predict a 90 percent chance of witnessing a primordial black hole explosion this decade, testing Hawking’s most ...

Two colliding galaxies have been found to be reorganizing their dwarf satellites, potentially solving a major conundrum plaguing the standard model of cosmology. New observations of a pair of ...

Portsmouth’s Institute of Cosmology and Gravitation leads a programme of events to mark World Space Week next month ...