Tagged With Breakthrough Starshot

A bizarre interstellar object called 'Oumuamua continues to perplex astronomers a year after it vanished. Here's why a few scientists still wonder if it was alien.


The speed of light is tortuously slow, and these 3 simple animations by a scientist at NASA prove it


A startup is developing a 100-gigawatt laser to propel a probe to another star system. That may be powerful enough to 'ignite an entire city.'



A Russian billionaire has launched the smallest-ever spacecraft into orbit -- a key step to reaching a nearby star system


Stephen Hawking just announced a radical $100 million project for interstellar travel using lasers