In this space wallpaper, the perfectly picturesque spiral galaxy known as Messier 81, or M81, looks sharp in this new composite from NASA's Spitzer and Hubble space telescopes and NASA's Galaxy ...
Oooo, what a pretty galaxy! That’s NGC 4151, a spiral galaxy in the constellation of Canes Venatici. This image was taken by my friend Adam Block using the 81 cm Schulman Telescope at the Mount Lemmon ...
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