NASAのインスタグラム(nasagoddard) - 9月15日 03時00分

I’m Michelle Thaller, an astronomer here at NASA's Goddard Space Flight Center. Looking at Saturn is probably the best way to send me back to that feeling of being a child, when everything is new and magical and curiosity is so overwhelming you feel like you’re going to explode.

The Hubble Space Telescope took this amazing sequence of images of Saturn in June as part of a program to study the atmospheres of our gas giant planets, but I just keep watching it over and over because it’s so beautiful.

Those rings, trillions of mostly tiny particles of dust and ice, stretch nearly a quarter million miles across, but on average, are only 50 feet thick. A sheet of paper at that scale would be 100 times thicker. And just look at those moons! Not only can you see physics in action (the closer ones orbit faster than farther out ones), but one of the moons in the frame, Enceladus, has a liquid water ocean spewing out through cracks in an icy shell, and may even be a friendly environment for life.

So much science here, so much beauty and curiosity. Sit back and enjoy the show.

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