A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...

Sailing has been a mainstay of human history for millennia, so it's no surprise that scientists would apply it to traveling ...

Nebulae are gigantic clouds of gas and dust that exist in space between stars. Check out 7 mesmerizing photos of this cosmic ...

"The lightsail will travel faster than any previous spacecraft, with potential to eventually open interstellar distances to ...

It would then take them just 20 years to travel to the Alpha Centauri star system four light years away, but they would have extremely little time to explore the system –. It is not possible for ...

An open letter to any friendly aliens who are considering making first contact with Earth soon: If I've learned anything from ...

Caltech scientists are developing laser-driven lightsails that could push spacecraft beyond our solar system. Their research ...

Tachyons, faster-than-light particles, challenge Einstein's theory, hinting at time travel. New models suggest they may reshape physics, causality, and cosmic expansion.

In the current vision for Starshot, a fleet of pebble-size spaceships hurtling through space at one-fifth the speed of light could reach Alpha Centauri in a mere 20 years. Working from a road map ...