TIME Magazineのインスタグラム(time) - 8月13日 03時01分

No spacecraft will ever land on the surface of the sun. But on Aug. 12, @NASA launched a probe that will journey nearly 90 million miles, eventually flying within 3.8 million miles of the flaming ball of gas. The ship will fly closer to its fires than ever before in a mission that represents a big development not just for scientists but, potentially, for everyone else. The Parker Solar Probe is expected to reach the sun’s outer envelope of fiery gases in several months, providing new insights not only into our home star but into all stars. Designing a spacecraft tough enough to take the sun’s thermal punishment has proved difficult. Back in 1958, Eugene Parker—a young physicist at the University of Chicago, whose name this spacecraft bears—published a paper about what we now call solar wind: the high-speed storms of stellar particles and magnetism that stream from the sun. Ever since his discovery, Parker, now 89, has been campaigning for a close-up mission to the sun. At last the technology is available. Read more about what #NASA hopes to learn from its latest mission on TIME.com. Video by @photobypip, @nbwphoto and @eyeontheuniverse for TIME

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