Walkabout the Galaxy
DART mission; planetary protection techniques; volcano on Mars; supernova
Astrophysics and Astronomy | Physics
There are lots of explosions in this episode, beginning with the upcoming planned impact of the DART mission into a teeny-weeny asteroid to test planetary protection techniques. Then we take a look at some nifty detective work about a volcanic explosion on Mars, and finally, astronomers may have found the pre-smoking gun that lets us know when a star is about to go supernova.
Weak Equivalence Principle
Don't be deceived by our humble name, the weak equivalence principle is the founding bedrock of strong equivalence and Einstein Equivalence, and our understanding of gravity, asserted in the Sixth Century, and demonstrated by dropping balls since the late 16th Century, the weak equivalence principle will keep you and all your belongings, regardless of their mass or other properties, moving along the same vacuum world lines in any gravitational field. To keep moving on your path through the cosmos, you can lean on the weak equivalence principle, it's strong enough to take it. The weak equivalence principle, travel brilliantly (Marriott).
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Dove, Adrienne; Sargeant, Hannah; and Cooney, James, "Boom: DART, Volcanoes, and Supernovae" (2022). Walkabout the Galaxy Podcast. 219.