In this image from NASA's Spitzer Space Telescope, "cometary knots" on the Helix Nebula show blue-green heads caused by excitation of their molecular material from shocks or ultraviolet radiation.

The Helix Nebula. Credit: X-ray: NASA/CXC/SAO/Univ Mexico/S. Estrada-Dorado et al.; Ultraviolet: NASA/JPL; Optical: NASA/ESA/STScI (M. Meixner)/NRAO (T.A. Rector ...

Don't waste ur money. Best of luck. Satisfied with Sanyo TV and good service, installed on same day,very good picture quality if you are watching full hd quality videos, 1080 px and good sound quality ...

Dimensions 173.2 x 106.7 x 8.3 ...

After hours: March 10 at 7:57:17 PM EDT ...