This visible-light view from from NASA's Spitzer Space Telescope highlights the bright M17 nebula, as well as the glowing hot gas filling the 'bubble' to its left.
This image from NASA's Spitzer Space Telescope shows he 'Peony nebula' star, a blazing ball of gas shines with the equivalent light of 3.2 million suns.
M33: A Close Neighbor Reveals its True Size and Splendor (3-color composite)
One of our closest galactic neighbors shows its awesome beauty in this new image from NASA's Spitzer Space Telescope. M33, also known as the Triangulum Galaxy, is a member of what's known as our Local Group of galaxies.
This image from NASA's Spitzer Space Telescope shows the nasty effects of living near a group of massive stars: radiation and winds from the massive stars (white spot in center) are blasting planet-making material away from stars like our sun.
This visible light/infrared image from NASA's Spitzer Space Telescope shows a swirling landscape of stars known as the North America nebula. Clusters of young stars (about one million years old) can be found throughout the image.
A dragon-shaped cloud of dust seems to fly out from a bright explosion in this infrared light image from NASA's Spitzer Space Telescope. These views have revealed that this dark cloud, called M17 SWex, is forming stars at a furious rate.
This image from NASA's Spitzer Space Telescope shows infrared light from the Sunflower galaxy, otherwise known as Messier 63. Spitzer's view highlights the galaxy's dusty spiral arms.
This infrared portrait of the Small Magellanic Cloud, taken by NASA's Spitzer Space Telescope, reveals the stars and dust in this galaxy as never seen before. This nearby satellite galaxy to our Milky Way galaxy is some 200,000 light-years away.
NASA's Spitzer Space Telescope captured this picture of comet Holmes in March 2008, five months after the comet suddenly erupted and brightened a millionfold overnight.
Generations of stars can be seen in this new infrared portrait from NASA's Spitzer Space Telescope. In this wispy star-forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities.
More than 800,000 frames from NASA's Spitzer Space Telescope were stitched together to create this infrared portrait of dust and stars radiating in the inner Milky Way.