Walkabout the Galaxy
Hayabusa-2, Ryugu, James Webb Space Telescope
Astrophysics and Astronomy | Physics
An ambitious Japanese mission, Hayabusa-2 has arrived at its target asteroid Ryugu. Are-you-good with that? See what we did there? (Ryugu'd? Get it?) Yes, that's the level of discourse on Walkabout the Galaxy, but we also find out about the great science to come from this exciting asteroid sample return mission, and a look ahead to the James Webb Space Telescope, whose launch has been slipped to make absolutely sure that nothing got Ryugu'd while building it. Plus we talk about the science of learning, and un-learning, with our special guest Anna Turner.
What's the source of 99.975% of the energy reaching the surface of the Earth? A young-looking 4.6 billion years old, and weighing in at a svelte 300,000-plus times the mass of the Earth, it's your hometown star, Sol! The source of virtually all life-sustaining energy on the homeworld is giving up mass at a rate of xxx metric tons per second just to brighten your day. Eat that energy up, because you're wasting most of it, and I ain't got an unlimited supply. Five billion years, give or take, and I'm checking out, and I plan on getting hotter before then, so you take a cue from Walkabout the Galaxy and learn how to walk about the galaxy before I make your home a bit too toasty. You can call me Sol, and I'll be sure to rise. The Sun: keeping things together so you can do all the things you need to do, is proud to sponsor this episode of Walkabout the Galaxy.
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Dove, Adrienne; and Cooney, James, "Wouldn't You Like to Hayabusa Too?" (2018). Walkabout the Galaxy Podcast. 53.