[petuniasevan]

Astronomy Fun Fact;

Stars' nuclear fusion reactions convert hydrogen and helium to heavier elements in their cores.
Those elements are locked away forever UNLESS that star is large enough to either lose most of its
outer layers during the red giant stage of its life (see planetary nebulae) OR if the star goes supernova.
That's its fate if it is above a certain mass (the "Chandrasekhar limit").

The Chandra X-Ray Observatory orbiting telescope was named
for the famed astrophysicist Subrahmanyan Chandrasekhar.

Get on the APOD PING list!

[petuniasevan]

APOD PING!

[RightWhale]

The August issue of the Discover magazine has an article that suggests there is an uranium nuclear reactor at the center of the earth. The proponent is J. Marvin Herndon, a geophysicist, and while he has some of the earmarks of a classical crackpot, I heard him interviewed on radio last night, and he has a good grasp of reality. More on this later.

[MeekOneGOP]

Nice pic, thanks. I'll let my FRiends know it wasn't named for Chandra Levy, lol!

[BradyLS]

Cool! Is that what that is? I thought you were slacking on us a pulling screen captures from old Star Trek episodes! :-D ;-)