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Gold from Starstuff, or a Fool’s Gold Scenario?

If you tweak your scenario hard enough, it will give you anything you want.

How Well Do Astrophysicists Understand the Origin of Heavy Elements?

Elements heavier than iron form in supernova explosions. End of story. We can all rest now. But wait...

Astronomers Deal With Outrageous Phenomena

Even for scientists accustomed to big things, some observations seem too outrageous to explain.

Tilted Planets Throw Theories Off Kilter

An example of how data can be framed as success or failure, depending on the reporter's spin.

What Do Geologists Know About the Early Earth?

There's not much data, and there's a lot of doubt and debate. That's what a geologist admits about theories of early earth history.

Where Do Gems and Precious Metals Come From?

Gold, diamonds, and other precious metals and gems... they are found close to the surface of the earth where humans can mine them and make jewelry. But they shouldn’t be there. Heavy elements should have sunk deep into the core of the Earth soon after it was formed. Wait till you hear some of the latest ideas about how precious metals and gems arrived near the surface. Maybe they shot up from the mantle. Maybe they came from outer space.
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