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APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Noctilucent Clouds and Comet NEOWISE
Explanation: These silvery blue waves washing over a tree-lined horizon in the eastern French Alps are noctilucent clouds . From high in planet Earth's mesosphere, they reflect sunlight in this predawn skyscape taken on July 8. This summer, the night-shining clouds are not new to the northern high-latitudes. Comet NEOWISE is though. Also known as C/2020 F3, the comet was discovered in March by the Earth-orbiting Near Earth Object Wide-field Infrared Survey Explorer ( NEOWISE ) satellite. It's now emerging in morning twilight only just visible to the unaided eye from a clear location above the northeastern horizon .
| Date | July 9, 2020 |
|---|---|
| Credit | Image Credit & Copyright: Emmanuel Paoly |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |