ALMA Records Giant Stellar Flare on Proxima Centauri, Astronomy

Using data from the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers discovered that a giant stellar flare erupted from Proxima Centauri -- the star closest to our Sun -- on March 24, 2017. This finding raises questions about the habitability of the recently-discovered Earth-mass planet Proxima b.

Neighboring Star's Bad Behavior: Large and Frequent Flares – Exoplanet Exploration: Planets Beyond our Solar System

What would happen to Earth if Proxima Centauri were replaced by Betelgeuse in a flash? - Quora

What would happen to Earth if Proxima Centauri were replaced by Betelgeuse in a flash? - Quora

Press Releases

ALMA observes record-breaking stellar flare from Proxima Centauri – National Radio Astronomy Observatory

Neighboring Star's Bad Behavior: Large and Frequent Flares – Exoplanet Exploration: Planets Beyond our Solar System

Proxima Centauri - Wikipedia

Proxima Centauri - Wikipedia

ESO – Stephens Memorial Observatory