NASAのインスタグラム(nasagoddard) - 7月28日 04時06分

These @NASAHubble images show Mars and Saturn at opposition - their closest approaches to us, when they line up on the opposite side of Earth from the Sun.
Hubble recently caught some closeup glamour shots highlighting Saturn's amazing rings and Mars smothered in a global dust storm.
The first image shows Saturn just after the point where its marvelous rings are at their maximum tilt toward Earth, which happened in 2017.

On Mars, a dust storm erupted in the southern hemisphere and ballooned into a global dust storm enshrouding the entire planet in a reddish haze and partially obscuring surface features as seen in the second image.

The third image shows the previous image of Mars taken at opposition, in 2016, when the atmosphere was considerably more clear than it is now. We see the same hemisphere, and some of the same features are visible as the 2018 image.

Credits: NASA, ESA, STScI, Amy Simon (Goddard) and the OPAL Team, and J. DePasquale (STScI)
#Mars #Saturn #opposition #Hubble #planets #HST

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