Amazon, Microsoft, and IBM are all racing to build a quantum computer. But the technology's feasibility is as hazy as its physics.

The simulation hypothesis—the idea that our universe might be an artificial construct running on some advanced alien computer ...

Right now, the debate about consciousness often feels frozen between two entrenched positions. On one side sits computational ...

Black holes are among the most extreme objects in the universe, and now scientists can model them more accurately than ever ...