‘It came from a dusty galaxy 2.4 billion light years away’ – sounds like an old sci-fi movie!
Oct. 17, 2022: Astronomers have never seen anything quite like it. On Oct. 9, 2022, Earth-orbiting satellites detected the strongest gamma-ray burst (GRB) in modern history: GRB221009A. How strong was it? It caused electrical currents to flow through the surface of our planet. Dr. Andrew Klekociuk in Tasmania recorded the effect using an Earth Probe Antenna:
The blue curve is a signal from Klekociuk’s antenna, which was sensing VLF (very low frequency) currents in the soil at the time of the blast. The orange curve shows the gamma-ray burst recorded by the high-energy STIX telescope on Europe’s Solar Orbiter spacecraft, one of many spacecraft that detected the event. The waveforms are a nearly perfect match.
“I am a climate scientist at the…
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via Tallbloke’s Talkshop
October 19, 2022 at 03:35AM