Space on MSN22 小时
Fly Over The 'Grand Canyon' Of Mars In High-Resolution Orbiter Imagery
Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: NASA/GSFC CTX global mosaic: NASA/MSSS/Caltech/ CTX topography: NASA/MSSS/USGS HiRISE: NASA/U.Arizona/USGS/Amaz ...
ZME Science on MSN17 小时
The moon has its own Grand Canyon that was created in just 10 minutes
A canyon is a deep, narrow valley with steep sides. Here on Earth, canyons are typically formed by long-term erosion from ...