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Our end-of-school issue features interviews with astrophysicist Brian Greene and NASA's Jim Adams, as well as celebrating Cassini's first 10 years of exploring Saturn, its rings and many moons. We have a guide on how to get started in astrophotography. Learn online at the new and free World Science U, or participate in research at the Zooniverse. We also do the math on getting to the Moon. And much more in the May issue of RocketSTEM. Еще
Inspiration for the next generation of scientists, astronomers, engineers and astronauts. Visit us on the web at www.rocketstem.org. Еще