Superflares, extreme radiation bursts from stars, have been suspected of causing lasting damage to the atmospheres and thus habitability of exoplanets. A newly published study found evidence that they only pose a limited danger to planetary systems, since the radiation bursts do not explode in the direction of the exoplanets.
Katja Poppenhaeger – Page 3 – Professor for Astrophysics in Potsdam/Berlin, Germany
An introduction to exoplanets: Week 8: 2.3 Consequences of being so close to a star
These are the ways our world will end
The Search for Superhabitable Planets. Worlds Even More Habitable Than Earth - Universe Today
Astronomers Thought They'd Found a Red Dwarf That Wasn't Hostile to its Habitable Zone Planets. They Were Wrong - Universe Today
Planetary Nebulae
Powerful superflares could pose a threat to Earth
Impact of space weather on climate and habitability of terrestrial-type exoplanets, International Journal of Astrobiology
The Forecast for Mars: Otherworldly Weather Predictions – LPIB
Just How Big Can Solar Flares Get, and Are We Ready? – The Wire Science
Startling superflares