The four laser beams excite sodium atoms in the atmosphere to make for better cosmic observations. The post Incredible photos ...
NASA astronaut Don Pettit captured this stunning long-exposure view of Earth and stars from space at night from the ...
The fundamental challenge in reaching a different star system ... told Space.com. "Energy is power [multiplied by] time — so to get a given amount of energy from a beam, you either need very ...
An initiative called Breakthrough Starshot wants to explore another star system using ultra ... That's because shooting a 1-gigawatt laser into space is not only bright, but could damage passing ...