Astronomy Picture of the Day ·
The Cosmic X-Ray Background
The Astronomy Picture of the Day for November 9, 2000 is “The Cosmic X-Ray Background,” an image. It is credited to Credit: G. Hasinger ( AIP ) et al., XMM-Newton , ESA. The original explanation runs about 175 words.
From the explanation
“Early on, x-ray satellites revealed a surprising cosmic background glow of x-rays and astronomers have struggled to understand its origin.”
— APOD editors, November 9, 2000
Read the full explanation on science.nasa.gov
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At a glance
- Date
- November 9, 2000
- Type
- Image
- Credit
- Credit: G. Hasinger ( AIP ) et al., XMM-Newton , ESA
- Copyright
- No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
- Explanation length
- About 175 words