Thor’s Helmet Nebula

Incredible Astrophoto: Thor’s Helmet in Canis Major

by Nancy Atkinson January 25, 2013

Want to stay on top of all the space news? Follow @universetoday on Twitter At first glance, you might expect this beautiful image to be from a big ground-based observatory or even one of the space telescopes. But this image was taken by “amateur” astronomer Rolf Wahl Olsen. We’ve featured his work before, and he’s […]

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