Researchers discover source of super-fast electron rain

UCLA scientists have discovered a new source of super-fast, energetic electrons raining down on Earth, a phenomenon that contributes to the colorful aurora borealis but also poses hazards to satellites, spacecraft and astronauts.

Shocking recipe for making killer electrons (w/ Video)

Take a bunch of fast-moving electrons, place them in orbit and then hit them with the shock waves from a solar storm. What do you get? Killer electrons. That's the shocking recipe revealed by ESA's Cluster mission.

Theorists Reveal Path to True Muonium

(PhysOrg.com) -- True muonium, a long-theorized but never-seen atom, might be observed in future experiments, thanks to recent theoretical work by researchers at the Department of Energy's SLAC National Accelerator Laboratory ...

Ghost remains after black hole eruption

NASA's Chandra X-ray Observatory has found a cosmic "ghost" lurking around a distant supermassive black hole. This is the first detection of such a high-energy apparition, and scientists think it is evidence of a huge eruption ...

Spacecraft reveal new details of magnetic reconnection

The space environment around Earth is characterized by interactions between Earth's magnetic field and nearby plasma. A key physical process in these interactions is magnetic reconnection, in which two adjacent field lines ...

Steve over the picket fence

Strange ribbons of purple light that appeared in the sky—known as Steve—became the subject of debate in 2017, as their origins were unbeknown to scientists. Now, photographs of this remarkable phenomena have been studied ...

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