Scientists pushed photons across the universe to test the speed of light—and found Einstein’s cosmic speed limit still holds ...

An international team, including astronomers from Keele University, has performed a unique cosmic test to measure the mass of an ancient star, which will help them learn more about the history of our ...

In 2019, the MAGIC telescopes detected the first Gamma Ray Burst at very high energies. This was the most intense gamma-radiation ever obtained from such a cosmic object. But the GRB data have more to ...

It’s time to hold onto your seats. Marvel's Fantastic Four just had a surprise test screening, and according to multiple insiders — and some attendees who shared their impressions firsthand — things ...

Milestone results released by the Large High Altitude Air Shower Observatory (LHAASO) on November 16 have solved a decades-old mystery about the cosmic ray energy spectrum—which shows a sharp decrease ...