In another chapter in the vast tome known as Holy Shit, The Universe is Freaking Cool, scientists tell us now that giant gas planets have centers where metallic helium and metal hydrogen mix to form a freaky metal alloy in liquid form.

Some bits from the article:

• The pressure at the Earth's core? 3.5 million times normal atmospheric pressure. Jupiter's core hits 70 million times normal atmospheric pressure.
• The cores of Jupiter and Saturn are two to four times hotter than the surface of the sun, which is almost the temperature Arizona reaches in July.
• The pressure at the cores of these big planets smash helium until it's like liquid mercury only less shiny.

But my absolute favorite is below the break...

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