Gamma ray burst 2 billion light-years away impacted Earth's atmosphere as strongly as a solar flare

Last year, on October 9, we on Earth witnessed the most luminous celestial event ever recorded, by far. It was a gamma ray burst (GRB) at least 10x as bright as any other example ever seen, and it lasted 70x longer than any other known GRB. This was

Best View Yet of Exceptional Cosmic Explosion – Challenges Established Theory of Gamma-Ray Bursts in the Universe

Gamma-ray burst in faraway galaxy disturbed Earth's upper atmosphere

Blast from the Past: Gamma-ray Burst Strikes Earth from Dist

What if the Carrington Event, the largest solar storm ever recorded, happened today?

Daily Kos: skralyx

Daily Kos: organicus

Solar maximum will arrive sooner and last longer than previously expected, say scientists

Gamma-ray burst - Wikipedia

The Most Powerful Gamma-Ray Explosion Ever Detected Briefly Changed Earth's Atmosphere

Astronomy News at Daily Kos