Walkabout the Galaxy
intermediate mass black holes, globular cluster NGC 6397
Astrophysics and Astronomy | Physics
The search for the elusive intermediate mass black hole (hundreds to thousands of times the mass of the Sun) has instead turned up a cluster of black holes within a cluster of stars. Just a few thousand light years from home, globular cluster NGC 6397 has a swarm of black holes at its core. Hear how astrophysical sleuths figured this out as well as catch up on space news, elemental trivia, and musings on vacation destinations with your friendly neighborhood astroquarks.
Not just a great song from Jethro Tull's underrated Rock Island album, heavy water is the perfect solution for those looking to master swimming without fear of sinking. It's density of 11% greater than your run of the mill light water, thanks to not one, but two extra neutrons, will have you feeling like you're floating on air except you'll be floating on water. Naturally occurring and non-radioactive, heavy water is also great for detecting neutrinos and enhancing the output of your nuclear reactor. So whether you want to be able to just float in a pool, moderate fissile neutrons, or untangle the mysteries of the cosmos from a shower of neutrinos, try heavy water. Note: prolonged intake of heavy water may lead to sterility, sudden toxic poisoning, and death. Heavy water, what's the worse that could happen? (Dr. Pepper)
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Dove, Adrienne; and Cooney, James, "Deep Dive Into a Globular Cluster" (2021). Walkabout the Galaxy Podcast. 151.