On July 2, 2025, the China-led Einstein Probe (EP) space telescope detected an exceptionally bright X-ray source whose brightness varied rapidly during a routine sky survey. Its unusual signal ...

A neutrino slammed into Earth in 2023 with so much energy that it looked almost unreal. The particle carried about 220 peta–electron volts, or PeV, making it the most energetic neutrino ever reported.

Volcanic eruptions usually leave behind a trail of ash, disruption, and costly cleanup. In the Philippines, that ash is now ...

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

New simulations performed on a NASA supercomputer are providing scientists with the most comprehensive look yet into the ...

Cherenkov Telescope Array Observatory to be world’s largest and provide new insights into high-energy Universe. A groundbreaking ceremony for the CTAO’s southern array facility took place last week at ...

A group of ESO and CTAO representatives, as well as Chilean authorities and regional representatives pose for a group photo near a monument at the CTAO-South site, where a symbolic time capsule was ...

Radionuclide imaging combines nuclear technique and medicine through the administration of radioactive drugs into living organisms, followed by imaging with specialized instruments. This technique is ...

Here’s what you’ll learn when you read this story: For nearly a century, scientists have been searching for direct evidence of dark matter—one of the key missing pieces of our theoretical ...

A century after Michelson and Morley’s historic zero result helped launch Einstein’s special relativity, physicists are still searching for tiny cracks in one of its core principles: Lorentz ...