Astronomy Picture of the Day ·
The Matter of the Bullet Cluster
The Astronomy Picture of the Day for January 15, 2017 is “The Matter of the Bullet Cluster,” an image. It is credited to Image Credit: X-ray: NASA/CXC/CfA/ M. Markevitch et al.; Lensing Map: NASA/STScI; ESO WFI; Magellan/U.Arizona/ D.Clowe et al. Optical: NASA/STScI; Magellan/U.Arizona/D.Clowe et al.. The original explanation runs about 164 words.
From the explanation
“What’s the matter with the Bullet Cluster? This massive cluster of galaxies ( 1E 0657-558 ) creates gravitational lens distortions of background galaxies in a way that has been interpreted as strong evidence for the leading theory: that dark matter exists within.”
— APOD editors, January 15, 2017
Read the full explanation on science.nasa.gov
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At a glance
- Date
- January 15, 2017
- Type
- Image
- Credit
- Credit: Image Credit: X-ray: NASA/CXC/CfA/ M. Markevitch et al.; Lensing Map: NASA/STScI; ESO WFI; Magellan/U.Arizona/ D.Clowe et al. Optical: NASA/STScI; Magellan/U.Arizona/D.Clowe et al.
- Copyright
- No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
- Explanation length
- About 164 words