When Galaxy Clusters Collide
Walkabout the Galaxy
galaxy collisions; Ceres
Astrophysics and Astronomy | Physics
Even the emptiness between galaxies is filled with enough energy over those vast expanses to generate shock waves and giant structures when clusters of galaxies collide. We explore this, the lives of galaxies, and some intriguing results about activity on the asteroid Ceres.
Chemical rockets may be flashy, and ion rockets may be fancy, but let the Yarkovsky effect get you back to basics and fly around the solar system on the power of photons. Thanks to thermal inertia and black body radiation, the Yarkovsky effect can either boost or decay your orbit, depending on the direction of your rotation. As a bonus, you can explore slowing your rotation or increasing your obliquity to allow the seasonal Yarkovsky effect to spiral you in toward the sun. For your orbital maneuvers, try the Yarkovsky effect. The Yarkovsky effect, choose where your power comes from (Sunrun)
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Sargeant, Hannah; and Cooney, James, "When Galaxy Clusters Collide" (2022). Walkabout the Galaxy Podcast. 197.