Walkabout the Galaxy
Artemis 1; origin of water; Betelgeuse; gravity darkening
Astrophysics and Astronomy | Physics
Artemis 1, the most powerful rocket to ever leave the Earth, is up and on its way to the Moon after more hydrogen leaks than we care to remember, and Up Astroquark Dr. Hannah Sargeant signs off on her last Walkabout appearance as she is away to new adventures. We review the Artemis 1 mission, a new tracer for the origin of water on Earth and Mars, and we learn about a new idea for that famous dimming of the supergiant star Betelgeuse. Learn about gravity darkening, also a great name for a rock band, space junk trivia, and more with Strange, Charm, and Up.
Iapetus' Equatorial Ridge
No visit to the Solar System is complete without a stay at Iapetus' Equatorial Ridge. Stretching over 1300 kilometers long, the equator of this beguiling, icy moon, Iapetus' Equatorial Ridge features peaks as high as 20km offering spectacular view of the two-tone moon's dark hemisphere. And with Iapetus' significant orbital inclination of over 15°, you'll have unparalled views of Saturn's majestic ring system, that it's other major moons simply cannot provide. With side trips available for skiing and sledding on Iapetus' famous cratered slopes, there's no better vacation destination of the ringed planet. Plan your next getaway for Iapetus' Equatorial Ridge, like no place on Earth (Vail Mountain Resort).
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Dove, Adrienne; and Sargeant, Hannah, "Up, Up, and Away" (2022). Walkabout the Galaxy Podcast. 226.