TERMS OF USE:
This free image can only be used for non-commercial, personal
website use only. THIS IMAGE CANNOT BE
used in galleries, downloaded to your computer, posted on sites for
others to use, manipulated, downsized, or upsized. If you are confused about the
terms of use or have any questions then contact us before using the image.
Free Picture: Stellar Ripple
|
Description Image of a galaxy in the Cartwheel galaxy. Approximately 100 million years ago, a smaller galaxy plunged through the heart of the Cartwheel galaxy, creating ripples of brief star formation. In this image, the first ripple appears as an ultraviolet-bright blue outer ring so powerful that it may be one of the most powerful UV-emitting galaxies in the nearby universe.
This false-color composite image shows the Cartwheel galaxy as seen by the Galaxy Evolution Explorer (GALEX), the Hubble Space Telescope (green); the Spitzer Space Telescope (red); and the Chandra X-ray Observatory (purple).
Although astronomers have not identified exactly which galaxy collided with the Cartwheel, two of three candidate galaxies can be seen in this image to the bottom left of the ring, one as a neon blob and the other as a green spiral.
Previously, scientists believed the ring marked the outermost edge of the galaxy, but the latest GALEX observations detect a faint disk, not visible in this image, that extends to twice the diameter of the ring.
Keywords astronomy, cartwheel galaxy, chandra x-ray observatory, galaxy, galaxy evolution explorer, galex, hubble space telescope, jpl, nasa, nature, ripples, spitzer space telescope, star formation, star formations, stars, uv-emitting galaxies, uv-emitting galaxy, stellar ripple, free photography, free photo, free photos, free picture, free pictures, free image, free images
Similar Free astronomy Pictures
|
|
|