Astronomy Cast, Podcasts

Astronomy Cast Ep. 205: Fusion

11 Nov , 2010 by

The interior of the Sun.

When the Universe formed after the Big Bang, all we had was hydrogen. But through the process of fusion, these hydrogen atoms were crushed into heavier and heavier elements. Fusion gives us warmth and light from the Sun, destruction with fusion bombs, and might be a source of inexpensive energy. We’ll also look into the controversy of cold fusion.

Click here to download the episode

Fusion – Show notes and transcript

Or subscribe to: with your podcatching software.


By  -        
Nancy Atkinson is currently Universe Today's Contributing Editor. Previously she served as UT's Senior Editor and lead writer, and has worked with Astronomy Cast and 365 Days of Astronomy. Nancy is also a NASA/JPL Solar System Ambassador.

3 Responses

  1. Nerull says:

    Slight correction, after big bang nucelosynthesis, the makeup of the universe by mass was: “75% of hydrogen-1, about 25% helium-4, about 0.01% of deuterium, trace (on the order of 10^?10) amounts of lithium and beryllium, and no other heavy elements.”

  2. Torbjorn Larsson OM says:

    Another correction is that there is no “controversy” on cold fusion any more than on AGW, say. Been there, done that.

  3. Aqua says:

    As always your conversations open doors and illuminate! Thank you for sharing your dialogue.

Comments are closed.