APOD on Nostr: **Astronomy Picture of the Day** 10 November 2024 **Valles Marineris: The Grand ...
**Astronomy Picture of the Day**
10 November 2024
**Valles Marineris: The Grand Canyon of Mars**
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The largest canyon in the Solar System cuts a wide swath across the face of Mars. Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep. By comparison, the Earth's Grand Canyon in Arizona, USA is 800 kilometers long, 30 kilometers across, and 1.8 kilometers deep. The origin of the Valles Marineris remains unknown, although a leading hypothesis holds that it started as a crack billions of years ago as the planet cooled. Several geologic processes have been identified in the canyon. The featured mosaic was created from over 100 images of Mars taken by Viking Orbiters in the 1970s.
#APOD #Galaxy #Astroinformatics #Astrochemistry #OuterSpace
https://apod.nasa.gov/apod/ap241110.html
10 November 2024
**Valles Marineris: The Grand Canyon of Mars**
*Image creditor details unavailable via API. Visit linked page below for full info.*
The largest canyon in the Solar System cuts a wide swath across the face of Mars. Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep. By comparison, the Earth's Grand Canyon in Arizona, USA is 800 kilometers long, 30 kilometers across, and 1.8 kilometers deep. The origin of the Valles Marineris remains unknown, although a leading hypothesis holds that it started as a crack billions of years ago as the planet cooled. Several geologic processes have been identified in the canyon. The featured mosaic was created from over 100 images of Mars taken by Viking Orbiters in the 1970s.
#APOD #Galaxy #Astroinformatics #Astrochemistry #OuterSpace
https://apod.nasa.gov/apod/ap241110.html