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

For the first time, physicists have simulated what objects moving near the speed of light would look like — an optical ...

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

Are you fast? Can you beat a friend in a race? How about an olympic sprinter? How about a beam of light? Find out how fast light is, how far a light year is, and learn how close our nearest exoplanet ...

Light speed would allow instant trips across Earth and minutes to reach the Sun, but even at 300,000 km/s the expanding ...