Walkabout the Galaxy
supermassive black hole, dust from Mars
Astrophysics and Astronomy | Physics
A supermassive black hole seems to be going on a walkabout its own galaxy, and dust from Mars (or its moons) seems to be going on a walkabout the solar system. We explain how that's possible and how we know about it on this episode which features space news updates and an elemental and historical trivia question.
If gravity, electromagnetism, and the nuclear forces are leaving you unsatisfied, and you'd like another way to move around, then quintessence may be for you. For that cosmic feeling of acceleration without the constraints of a cosmological constant, quintessence is your go-to solution for stretching space-time at an ever-faster rate. And if you act now, you won't have to stretch your wallet. quintessence is available to listeners of Walkabout the Galaxy at no cost, with special discount code, wq = pq * ρq. So don't wait, act before quintessence gives the universe a big rip and get an extra boost in life. Quintessence, the quicker picker-upper.
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Dove, Adrienne; and Cooney, James, "The Fifth Element" (2021). Walkabout the Galaxy Podcast. 154.