Astronomy Picture of the Day ·
Phobos: Moon over Mars
The Astronomy Picture of the Day for July 21, 2017 is “Phobos: Moon over Mars,” an image. It is credited to Image Credit: NASA , ESA , Zolt Levay ( STScI ) – Acknowledgment: J.Bell ( ASU ) and M.Wolff ( SSI ). The original explanation runs about 137 words.
From the explanation
“A tiny moon with a scary name , Phobos emerges from behind the Red Planet in this timelapse sequence from the Earth-orbiting Hubble Space Telescope . Over 22 minutes the 13 separate exposures were captured near the 2016 closest approach of Mars to planet Earth.”
— APOD editors, July 21, 2017
Read the full explanation on science.nasa.gov
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At a glance
- Date
- July 21, 2017
- Type
- Image
- Credit
- Credit: Image Credit: NASA , ESA , Zolt Levay ( STScI ) – Acknowledgment: J.Bell ( ASU ) and M.Wolff ( SSI )
- Copyright
- No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
- Explanation length
- About 137 words