Wednesday, 3 January 2018

A Physicist Pushes for Interstellar Travel

A Physicist Pushes for Interstellar Travel

There’s a lot to explore within a couple billion kilometers of the Sun—moons, planets, asteroids—but some scientists like Les Johnson are already looking beyond our solar system. Johnson, who holds degrees in chemistry and physics, is a researcher at the NASA George C. Marshall Space Flight Center in Huntsville, Alabama. He’s investigating how a new kind of fuel-less propulsion known as solar sail technology might one day be used to send instruments to faraway worlds orbiting other stars.

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