Heart of the Sun
Active Region 11589 wishes you a wonderful Valentine's Day! And what better way to say "I love you" than with heart-shaped, 8-million Kelvin plasma. Print this out with the tagline, "You are my sunshine," and you're good to go... On second thought, just buy chocolates.
Image: SAO/NASA/JAXA/NAOJ [high-resolution]
Caption: Patrick McCauley