Walkabout the Galaxy
Cassini, dwarf galaxies, Milky Way
Astrophysics and Astronomy | Physics
Josh recounts experiencing the end of the Cassini mission and recalls more than a quarter century of involvement with the project in this episode. Then the astroquarks take a look outward toward our galaxy and its retinue of dwarf galaxies and what that may say about how typical, or not, the Milky Way is in the grand scheme of things. All that plus Cassini trivia, nerd news, and a meteorological sponsor on this episode of WtG.
What a difference one little vowel makes. Conviction will keep you rooted to the spot, whether that be a philosophical principle, or if convicted of something in the legal sense, physically rooted to the spot. But convection will loft you skyward, taking energy up through the atmosphere, or to the top of a boiling pot of water, more efficiently than radiation or conduction. Convection is here to take those blant, under-dense particles of air to the top of the troposphere, or those glowing globs to the top of your lava lamp. Convection may cause soup to splatter, tornadoes, hailstorms, sunspots, that weird shimmering on the horizon if you're about to die in the desert, thunderstorms and devastating hurricanes. Use with care. Convection, proud sponsor this episode of Walkabout the Galaxy.
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Dove, Adrienne; and Cooney, James, "To Be, Cassini, Or Not To Be" (2017). Walkabout the Galaxy Podcast. 28.