Astronomy Picture of the Day ·
Unexpected X-Rays from Perseus Galaxy Cluster
The Astronomy Picture of the Day for January 2, 2018 is “Unexpected X-Rays from Perseus Galaxy Cluster,” an image. It is credited to Image Credit: X-ray: NASA/CXO/Oxford University/J. Conlon et al.; Radio: NRAO/AUI/NSF/Univ. of Montreal/Gendron-Marsolais et al.; Optical: NASA/ESA/IoA/A. Fabian et al.; DSS. The original explanation runs about 205 words.
From the explanation
“Why does the Perseus galaxy cluster shine so strangely in one specific color of X-rays? No one is sure, but a much-debated hypothesis holds that these X-rays are a clue to the long-sought identity of dark matter .”
— APOD editors, January 2, 2018
Read the full explanation on science.nasa.gov
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At a glance
- Date
- January 2, 2018
- Type
- Image
- Credit
- Credit: Image Credit: X-ray: NASA/CXO/Oxford University/J. Conlon et al.; Radio: NRAO/AUI/NSF/Univ. of Montreal/Gendron-Marsolais et al.; Optical: NASA/ESA/IoA/A. Fabian et al.; DSS
- Copyright
- No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
- Explanation length
- About 205 words