Flashes like Cherenkov radiation in space may reveal negative-energy ghosts, hinting at gaps in gravity theories.

If ever spotted in the emptiness of space, according to theoretical physicist Eugeny Babichev of the University of ...

Space is filled with a variety of objects, some blisteringly hot, some tremendously cold, but areas with little to nothing at ...

The IAEA’s expertise in medical physics and dosimetry is enhancing the capacities of countries around the globe to use ionizing radiation in medical procedures safely and effectively, the Scientific ...