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Thursday, September 3, 2015

Asteroid security

Watch scientists fire up laser weapon that could blast asteroids away from Earth and make interstellar travel a reality


To simulate a laser's ability to deflect an asteroid, researchers directed a laser onto the target until it glowed white hot, producing a 'rocket engine' using the asteroid itself as the propellant.Researchers have unveiled the ultimate sci-fi laser weapon.
DE-STAR, or Directed Energy System for Targeting of Asteroids and exploRation, uses a massive array of laser beams to intercept and deflect asteroids - and could also be used as a photon drive for insterstellar travel.
Researchers have revealed the system working in the lab - albeit on a smaller scale.It is the brainchild of UC Santa Barbara physicist Philip Lubin and Gary B. Hughes, a researcher and professor at California Polytechnic State University, San Luis Obispo. 
To simulate a laser's ability to deflect an asteroid, Travis Brashears led a group of students in tests that simulate space conditions. 



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