Rosa Parks sparks Civil Rights Movement. On this day in 1955, Rosa Parks, an African-American, was arrested and charged with violating a Montgomery, Ala., ordinance that required her to relinquish her bus seat to a white passenger. Her act of defiance sparked a yearlong bus boycott in the segregated city.
View full size image. The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.
Warp speed could be a reality in the next 100 years: Star Trek-like travel between galaxies is possible, claims astrophysicist. Warp speed space travel that will allow us to travel between galaxies could be a reality in the next 100 years. This is according to Professor Geraint Lewis, from the University of Sydney, who claims the idea of warp speed is, in theory, possible. He claims the futurist concept was part of Einstein's theory of relativity, which describes how we can bend space and time.