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By Astronomy Cast on September 16, 2019 in
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We took a hiatus this summer, but SpaceX sure didn’t, with the tests of the Starhopper prototype. Today we’re going to talk about the revolution in reusable rocketry and quest to build a fully reusable two-stage rocket.

By Steve Nerlich on April 9, 2019 in
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Cheap Astronomy goes back to basics with a podcast on rockets and telescopes.

By Astronomy Cast on September 24, 2018 in
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To move around in space, you need some kind of propulsion system. And for now, that means rockets. Let’s learn the underlying science of rockets, and how they work.

By Paul M. Sutter on June 5, 2018 in
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What does momentum have to do with rockets? Why are nozzles so dang important?

By Astronomy Cast on March 5, 2018 in
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Rockets have additional stages to push them into trajectories, like transfer orbits and various orbital maneuvers. Let’s talk about what happens after the rocket is long gone, beyond our sight.

By Astronomy Cast on February 26, 2018 in
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The vast majority of rockets are multi-staged affairs. Why is this? What makes this kind of rocket so successful?

By Al Grauer on April 23, 2017 in
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The Cosmic Campground in the Gila National Forest in western New Mexico & The venerable RS25 rocket engine is from the Shuttle era for 2018.