This panoramic view encompasses the entire sky as seen by Two Micron
All-Sky Survey. The measured brightnesses of half a billion stars
(points) have been combined into colors representing three distinct
wavelengths of infrared light: blue at 1.2 microns, green at 1.6 microns
microns, and red at 2.2 microns.
This image is centered on the core of
our own Milky Way galaxy, toward the constellation of Sagittarius. The
reddish stars seemingly hovering in the middle of the Milky Way's disc
-- many of them never observed before -- trace the densest dust clouds
in our galaxy. The two faint smudges seen in the lower right quadrant
are our neighboring galaxies, the Small and Large Magellanic Clouds.
Image credits: 2MASS/J. Carpenter, T. H. Jarrett, & R. Hurt