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Happy Birthday, Hubble Space Telescope!
The Hubble Space Telescope has been in orbit for 22 years today, and to celebrate, NASA has released this awesome image of the Tarantula Nebula, also known by its less romantic scientific name of 30 Doradus.
A nebula is a massive cloud of gas and dust in which some areas are coalescing and igniting into stars. The Tarantula Nebula is located in the Large Magellanic Cloud, a galaxy orbiting our own Milky Way galaxy. The light comes from thousands of stars in its center that illuminate the clouds and filaments around them.
In addition to being one of the most groundbreaking scientific instruments of the late twentieth century, Hubble is a team player. This image is a composite from the Hubble and two other space telescopes: Chandra X-ray Observatory and the Spitzer Space Telescope, an infrared instrument my super-cool astronomer wife uses. NASA says:
"The Hubble data in the composite image, colored green, reveals the light from these massive stars along with different stages of star birth, including embryonic stars a few thousand years old still wrapped in cocoons of dark gas. Infrared emission data from Spitzer, seen in red, shows cooler gas and dust that have giant bubbles carved into them. These bubbles are sculpted by the same searing radiation and strong winds that comes from the massive stars at the center of 30 Doradus."
Happy Birthday, Hubble!
Photo courtesy NASA. To see the image in its full 3000-pixel glory, click here.