Walkabout the Galaxy
white dwarfs; plants grown in Lunar soil
Astrophysics and Astronomy | Physics
A new type of nova has been confirmed. One million times fainter than a nova, these thermonuclear runaway explosions are confined to the polar regions of white dwarf stellar embers. Closer to home, researchers at the University of Florida have grown plants in lunar soil returned from the Apollo missions. Supply your own fertilizer. We have astro-historical-etymological trivia and sponsor message.
For a handy check on just how dark soot is, and just how bright the moon is, get albedo. This simple ratio of an object's radiosity to the radiance on it, will make you feel radiant with the knowledge of its reflectivity. Available with wavelength dependence at no extra charge, albedo can be used in astronomy to determine the sizes of distant comets and asteroids, and climate modeling to determine the fate of the planet. From the darkest, carbonaceous chondrites, to the brightest snows of Enceladus, pump up your brightness with Albedo. Albedo, you press the button, we do the rest (Eastman-Kodak).
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Dove, Adrienne; and Sargeant, Hannah, "Lunar Plants and Micronovae" (2022). Walkabout the Galaxy Podcast. 205.