Glimpses of the ultrafast world of electrons are changing scientists’ vision of the inner workings of atoms and molecules. The 2023 Nobel Prize in physics goes to three physicists who illuminated this realm with ultrashort pulses of light, the Royal Swedish Academy of Sciences announced October 3. Physicists Pierre Agostini, Ferenc Krausz and Anne L’Huillier […]
Vela’s exploded star is the highest-energy pulsar ever seen
The sweeping beams of cosmic lighthouses called pulsars are much more energetic than previously thought, calling into question the bulbs that power them. A new analysis, from the High Energy Stereoscopic System array in Namibia, reveals a pulsar that radiates at 20 trillion electron volts — making it the most energetic pulsar ever seen. The finding, […]