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.

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

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

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