By choosing the right path and the right reference frames, any superluminal motion can lead to information or objects returning to their origin before they depart.

Inspired by Gene Roddenberry's Star Trek, physicist Miguel Alcubierre set out to transform one of the cornerstones of science fiction iconography, the Warp Drive, into reality. But is it even possible? Can we "warp" the fabric of reality...

So we've all heard of relativity, right? But... what is relativity? And how does it relate to light? And motion? In this episode of Crash Course Physics, Shini talks to us about perspective, observation, and how relativity is REALLY weird!

SUMMARY

What if gravity repelled instead of attracted? Repulsive gravity may have shaped the entire history of our universe. For centuries gravity was defined by Isaac Newton’s Law of Universal Gravitation which...

Pupil outcome: I can explain that light travels in straight lines. Key learning points: - We need light to be able to see things. - Light travels out from a source of light in all directions. - Light travels in straight lines. -...

How a black hole's ergosphere may help us go faster than the speed of light.

This show explores the fascinating features of the universe, the different types of galaxies in our solar system and the position of our solar system in the Milky Way Galaxy. Other terminology includes: constellations, spiral galaxy,...

A long time ago, in a galaxy far far away. The star wars universe centered in this galaxy has of course been the center of many stories filled with action intrigue and mindless cash grabs for toy licensing, but it is also home to an...

This captivating series of programs explores many of the amazing features of our universe. Special attention is given to our solar system, distances in space, and stars. Terminology and concepts include: Milky Way Galaxy, light-year,...