The arsons were no accident, archaeological evidence suggests.

In one experiment, the Viking landers added water to Martian soil samples. That might have been a very bad idea.

Rocks and minerals don’t simply reflect light. They play with it and interact with light as both a wave and a particle.

The biggest nuclear blast in history came courtesy of Tsar Bomba. We could make something at least 100 times more powerful.

The concept of the warp drive is currently at odds with everything we know to be true about physics.

In a distant galaxy, a cosmic dance between two supermassive black holes emits periodic flashes of light.

From the present day all the way to less than 400 million years after the Big Bang, we're seeing how the Universe grew up like never before.