Sunset on Mars

Thanks to NASA for posting this pic of sunset on Mars as part of their image of the day series.

(Hat tip to Laughing Squid via Boing Boing)

The Helix Nebula

[In this image provided by NASA shows a newly expanded image of the Helix nebula Friday Aug. 24, 2007 lending a festive touch to the fourth anniversary of the launch of NASA's Spitzer Space Telescope. This spectacular object, a dying star unraveling into space, is a favorite of amateur and professional astronomers alike. Spitzer has mapped the expansive outer structure of the six-light-year-wide nebula, and probed the inner region around the central dead star to reveal what appears to be a planetary system that survived the star's chaotic death throes. Spitzer launched from Cape Canaveral, Fla., on August 25, 2003. (AP Photo/NASA-JPL)]