Hyperloop super-fast rail to hit milestone

Elon Musk's vision of a Hyperloop transport system that carries passengers in pressurized tubes at near-supersonic speeds is on track to hit a milestone on Tuesday.

Can you kill a star with iron?

Since the energy required to fuse iron is more than the energy that you get from doing it, could you use iron to kill a star like our sun?

Inside Science Of Iron Man 2

When Iron Man 2 opens in theaters this Friday, you probably won't notice the science consultant who helped bring real science into the world of science fiction.

Making sense of Iron Man's science

With this week's release of the new Captain America movie, Civil War, it's another opportunity to see Captain Rogers and Tony Stark as Iron Man draw on their superhuman strength and technology—even if they bring it to bear ...

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