Stephen Hawking
Stephen Hawking https://asteroidday.org/wp-content/themes/fildisi/images/empty/thumbnail.jpg 150 150 Asteroid Day https://asteroidday.org/wp-content/themes/fildisi/images/empty/thumbnail.jpg
“Sooner or later disasters such as an asteroid collision or a nuclear war could wipe us all out, but once we spread out into space and establish independent colonies, our future should be safe”
