NASAのインスタグラム(nasa) - 8月12日 17時28分

3-2-1… and we have liftoff of Parker Solar Probe atop United Launch Alliance’s Delta IV Heavy rocket ?. The probe is headed toward the Sun with a whopping 55 times more energy than is required to reach Mars. About the size of a small car, it weighs a mere 1,400 pounds.Zooming through space in a highly elliptical orbit, Parker Solar Probe will reach speeds up to 430,000 miles per hour — fast enough to get from Philadelphia to Washington, D.C., in a second — setting the record for the fastest spacecraft in history. During its nominal mission lifetime of just under 7 years, Parker Solar Probe will complete 24 orbits of the Sun — reaching within 3.8 million miles of the Sun’s surface at closest approach.We’ll be going where no spacecraft has dared go before — within the corona of a star. With each orbit, we’ll be seeing new regions of the Sun’s atmosphere and learning things about stellar mechanics that we’ve wanted to explore for decades.Credit: NASA/Bill Ingalls#NASA #space #Parker #ParkerSolarProbe #SolarProbe #Solar #Sun #spacecraft #launch #liftoff #ULA #rocket #DeltaIV #science #heliophysics #orbit #probe #corona

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