NASAさんのインスタグラム写真 - (NASAInstagram)「Mission control, are you ready for launch? 🚀 This week’s Saturday Science is all about rockets, the massive machines that take our technology and astronauts into space. It’s not easy to launch things into space. Think about how much energy it takes to jump as high as you can. Now imagine what it’s like for a rocket to travel hundreds of miles from the surface of Earth and overcome the awesome force of Earth’s gravity! To overcome gravity and enter Earth’s orbit, rockets must carry a lot of propellant (fuel) and speed up to about 17,800 miles per hour. To leave Earth’s orbit and help a spacecraft travel to the Moon or another planet, a rocket needs to reach 25,000 miles per hour. That’s really, really fast. But, with the technology and fuel NASA and other space agencies have developed, humans can reliably launch rockets, humans, and technology into space and beyond. The rockets that launch astronauts to space usually launch from NASA's Kennedy Space Center launchpads. But Goddard gets in on the fun too. NASA’s Wallops Flight Facility in Virginia hosts launches year round - including sounding rockets, which launch to the edge of space to study Earth's atmosphere, auroras and even look at galaxies far out in space! Wallops also supports resupply launches, using rockets to carry supplies and science to the International Space Station. You can watch a resupply launch from Wallops on Aug. 1! NASA’s biggest rockets are the ones that take humans into space. NASA’s Artemis program will take humans – including the first woman and the first person of color – to the Moon. Here at Goddard, we’re helping to ensure the safety of people and equipment by developing strong space communication networks, testing equipment, mimicking the conditions of the Moon, and finding safe landing zones to get our boots on the ground. The lunar ground, that is! The students of today are the Artemis generation, part of our journey back to the Moon and on to Mars. Do you think you might be the first person on Mars? Learn more about NASA rockets and how to watch upcoming launches at the link in our bio!」7月23日 3時00分