Ganymede_JunoGill_2217.jpg
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Summary
Description Ganymede JunoGill 2217.jpg |
English:
Ganymede, larger than even Mercury and Pluto, has an icy surface speckled with bright young craters overlying a mixture of older, darker, more cratered terrain laced with grooves and ridges. The cause of the grooved terrain remains a topic of research, with a leading hypothesis relating it to shifting iced plates. Ganymede is though to have an ocean layer that contains more water than Earth -- and might contain life. Like Earth's Moon, Ganymede keeps the same face towards its central planet, in this case Jupiter. The featured image was captured last week by NASA's robotic Juno spacecraft as it passed only about 1000 kilometers above the immense moon. The close pass reduced Juno's orbital period around Jupiter from 53 days to 43 days. Juno continues to study the giant planet's high gravity, unusual magnetic field, and complex cloud structures.
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Date | |
Source | https://science.nasa.gov/ganymede-juno / http://apod.nasa.gov/apod/ap210614.html |
Author | NASA/JPL-Caltech/SwRI/MSSS; processing by Kevin M. Gill |
Licensing
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This file is in the public domain in the United States because it was solely created by NASA . NASA copyright policy states that "NASA material is not protected by copyright unless noted ". (See Template:PD-USGov , NASA copyright policy page or JPL Image Use Policy .) | ||
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Attribution:
Kevin M. Gill
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