Spaceships Could Use Pulsars as a GPS

Magazine issue: Vol. 193, No. 2, February 3, 2018, p. 7 OXON HILL, Md. — Future spacecraft could navigate by the light of dead stars. Using only the timing of radiation bursts from pulsating stellar corpses, an experiment on the International Space Station was able to pinpoint its location in space in a first-ever demonstration. The technique […]

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Physicists Have Created an Artificial Gamma Ray Burst in the Lab

By Matt Williams On July 2nd, 1967, the U.S. Vela 3 and 4 satellites noticed something rather perplexing. Originally designed to monitor for nuclear weapons tests in space by looking for gamma radiation, these satellites picked up a series of gamma-ray bursts (GRBs) coming from deep space. And while decades have passed since the “Vela Incident“, astronomers are still […]

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The Science of Desert Planets

By Alex Acks I’ve been reading science fiction and fantasy almost as long as I’ve been able to read, and I’m normally very good at suspending my disbelief. Unfortunately, seven years of university schooling and two degrees have now placed some suspension limits on certain areas—namely geology, landforms, and maps. I tend to notice little things like […]

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NASA Studies the Magnetosphere

By Mara Johnson-Groh The space high above Earth may seem empty, but it’s a carnival packed with magnetic field lines and high-energy particles. This region is known as the magnetosphere and, every day, charged particles put on a show as they dart and dive through it. Like tiny tightrope walkers, the high-energy electrons follow the […]

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