Astronomía, Astronomy.
Esporamistica
gravitationalbeauty:

Sun with Solar Flare
gravitationalbeauty:

A Perseid Below
astronomyandastrophotography:

gamma—crucis:

Supernova Remnant E0102-72 
More Info
Credit: NASA / CXC / MIT / D.Dewey et al., NASA / CXC / SAO / J.DePasquale
the-wolf-and-moon:

NGC 1316, After Galaxies Collide
zerostatereflex:

Detailed View of a Solar Eclipse Corona 
"Only in the fleeting darkness of a total solar eclipse is the light of the solar corona easily visible."
robertozod:

Solar flare.