NASAのインスタグラム(nasa) - 7月27日 06時22分

These two images of Mars (swipe for a view from 2016) taken by our Hubble Space Telescope (@NASAHubble), show very different views of the same hemisphere roughly two years apart. Both were captured when Mars was near opposition, which occurs about every two years, when Earth’s orbit catches up to Mars’ orbit.At that time, the Sun, Earth and Mars fall in a straight line, with Mars and the Sun on “opposing” sides of Earth. The first image, taken on July 18, 2018, features a global dust storm, with spring in the southern hemisphere. You can tell that dust has engulfed the planet by swiping back and forth. Details like craters become more difficult or even impossible to spot. The second image, taken on May 12, 2016, shows a clear atmosphere. Credit: NASA, ESA, and STScI#nasa #space #mars #RedPlanet #dust #hubble #spothubble #telescope #science #storm #planet #solarsystem #duststorm #marsstorm #picoftheday #pictureoftheday

[BIHAKUEN]UVシールド(UVShield)

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