Here's the link:
1947-07-21 | The Diamond As Big As the Ritz (30 min) |
Based on what was known at the time, Arthur C Clarke, with a solid science background, once suggested that at the center of Jupiter there exits a very high quality diamond about the size of earths moon. Carbon is the heaviest common element detectable in Jupiter’s atmosphere and most of it would drift to the bottom of that massive gravity well where it would be subject to immense pressure forming it into a diamond.
Nice supposition.