Many philosophers and scientists have pondered if we live in a simulated universe, and University of Portsmouth scientist ...

It's fun to think about the fundamental physical constants. These are special values used in our models of the physical universe. They include things like the speed of light, the gravitational ...

This persnickety number determines the strength of magnetic fields. It figures in everything from motors and generators to audio speakers. Oh, and without it we’d live in eternal darkness.

For decades, astronomers have been trying to nail down the value of the Hubble constant—a measure of how fast the universe is expanding. But some cosmologists say there’s evidence that the universe is ...

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. In the late 1800s Italian astronomer Giovanni Schiaparelli pointed a telescope at Mars ...

However we do not have to worry about the universe-obliterating Big Rip yet because if it happens it would happen in about 22 billion years.

"Lava planets are in such extreme orbital configurations that our knowledge of rocky planets in the solar system does not directly apply." Astronomers may be starting to get the goods on lava planets.

Daphnia pulex (a.k.a. the water flea) is a microscopic crustacean whose unique reproduction habits make it the perfect ...