Imagine you’re in a car driving across the country watching the landscape. A tree in the distance gets closer to your car, passes right by you, then moves off again in the distance behind you. Of ...

Science fiction authors and readers dream of travelling at the speed of light, but Einstein tells us we can’t. You might think that’s an arbitrary rule, but [FloatHeadPhysics] shows a different way to ...

Time would pass differently on Earth for travelers moving at light speed, with thousands of years potentially elapsing while ...

Imagine watching a spaceship zoom past at unimaginable speeds—so fast it is brushing up against the very limits of physics. What do you think it would look like? Scientists have long known that ...

The idea was first hypothesized about 70 years ago. In a bizarre repercussion of Albert Einstein's Special Theory of Relativity, objects traveling close to the speed of light appear flipped over. The ...