A long-standing mystery about the Sun’s powerful solar flares has finally been solved. Scientists have confirmed a ...

118, No. 840 (February 2006), pp. 227-235 (9 pages) ABSTRACT We present optical spectra of a flare on Barnard’s star. Several photospheric and chromospheric species were enhanced by the flare heating.

Seven Earth-sized worlds orbit a red dwarf star just 40 light-years away ... They emit powerful flares that might strip nearby planets of their atmospheres, and even if a planet can hold on ...