For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

The idea of traveling faster than light has fascinated scientists and dreamers for generations. With stars and galaxies separated by unimaginable distances, humanity continues to explore how we might ...

The Universe is immense. Our most powerful telescopes observe galaxies whose light has taken more than 10 billion years to ...