Sun-like stars produce 'superflares' about once a century, surprising astronomers who had previously estimated that such events occurred only every 3000 to 6000 years.
Presolar grains are tiny solid minerals that crystallized in the gas of ancient stars. These crystals are the oldest material ever handled by humans. Some, from the Murchison meteorite, belonged to a group of massive stars that perished hundreds of millions of years before the birth of our Sun.
Sun erupts with powerful X1.2 solar flare, causes radio blackouts (photo)