However, that is still an object too small to carry a human relying on the sun's gravity to travel at 0.063% the speed of light. Not exactly impressive, but we've all gotta start somewhere.

In science fiction, spaceships moving at or beyond lightspeed enable all manner of universal exploration. But in Earth-bound reality, traveling at the speed of light (299,792,458 meters per second ...

People have yet to build spaceships that can move at speeds anywhere near as fast as light, but astronauts who visit the International Space Station orbit around the Earth at speeds close to ...

When it comes to space travel, Albert Einstein's theory of relativity is a major inconvenience. With the laws of physics (currently) prohibiting faster-than-light travel, velocities are limited to ...

A laser-powered, AI-designed “potato” lightsail could send a probe to Alpha Centauri in just 20 years. Here’s how it could change space travel forever.

Currently, the speed of light through a vacuum (an area devoid or almost devoid of matter) has been clocked at 299,792,458 meters per second. That's about 186,282 miles per second. When light ...