Walkabout the Galaxy
James Webb Space Telescope; Lagrange point; geysers of Enceladus; antimatter stars
Astrophysics and Astronomy | Physics
We welcome 2022 with a look at the future home of the James Webb Space Telescope - Earth's L2 Lagrange point, and an exploration of Lagrange points around the solar system. New research suggests the geysers of Enceladus may originate in a slush pool rather than the moon's ocean, and what would it mean if there were antimatter stars? All this and more can be found on this episode of Walkabout with your happy hosts, the astroquarks.
Just 1% further from the Sun than the Earth, this gravitational saddle point is a great place for a space telescope to "saddle up" for an exploration of the cosmos. While unstable, this gravitational equalibruum takes just a wee-bit of fuel for your favorite space craft to maintain lissajous orbit, so its solar panels can bask in the full the Sun 24/7, and its giant mirror can scan the cosmos 365.25/1. While L5 may be the place for your future space-based colony, thank L2 for providing your eye on the sky for a safe place to fly. L2, life's good (LG).
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Cooney, James; Dove, Adrienne; and Sargeant, Hannah, "Lagrange Points Everywhere" (2022). Walkabout the Galaxy Podcast. 190.