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

May 8 (UPI) --A mysterious laser beam in the night sky over San Francisco sparked a flurry of speculation online before being identified as the work of a data security company. The blue and green ...

"Chemical rockets that we use today, even with the extra speed boost from flying by planets, or from swinging by the sun for ...

A FUTURISTIC drone-destroying laser has been seen firing from a US Navy warship in an incredible declassified image. The ...

The HELIOS system, installed in 2022, is designed to neutralize drones, disable enemy sensors, and potentially counter ...

An initiative called Breakthrough Starshot wants to explore another star system using ultra-powerful laser beams and wafer-thin spaceships. It's a goal that sounds so fantastic, you'd be forgiven ...

This is often done using a laser guide star, a strong laser beam shot into the sky that provides a “perfect” example star whose distortion is measured so that the system can correct for it.

A laser beam in outer space that sends orbiting debris to a fiery end in the Earth's atmosphere may soon be a reality. SKY Perfect JSAT Corp. said it is developing a satellite that can shoot ...

In this area researchers have now demonstrated a way around this, by using curved channels for the laser beams (paywalled paper) which inject the laser beam into the continuous cavity. Schematic ...