<p>Two enormous <a href="http://scied.ucar.edu/solar-filament">filaments</a> floating above the sun's surface come to a head, creating an "arrow" pointing to the right. If these dark-colored lines of cooler material were straightened out, each would be a million miles long.</p>
Arrow
Two enormous filaments floating above the sun's surface come to a head, creating an "arrow" pointing to the right. If these dark-colored lines of cooler material were straightened out, each would be a million miles long.
- Week's Best Space Pictures
Week's Best Space Pictures: See An Arrow on the Sun
Pluto's moon Nix wobbles in a chaotic spin and filaments floating across the sun head to the right.
Feed your need for "heavenly" views of the universe every Friday with our picks of the most awe-inspiring space pictures. This week, a new braking system for Martian spacecraft is put through its paces and fluffy white clouds dot green fields in Texas.
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