It was a bold thought experiment: that only one electron makes up the entire universe. The most famous conversation about it took place between Richard Feynman, PhD, and John Wheeler, PhD, both ...

Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark ...

Look for new books and comics geared toward He-Man fans of all ages.

That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion ...

This enormous chain of hundreds of galaxies—a cosmic filament—is twisting through space 400 million light-years away ...

It's well established that the universe is expanding, but there's serious disagreement among scientists over how fast it's happening.