Reaching interstellar space could be far simpler than we thought, thanks to a new idea called TARS, or "Torqued Accelerator using Radiation from the Sun." It's essentially a solar-powered centrifuge that can slingshot tiny probes to speeds greater than the escape velocity required to exit the solar system.
Undertaking an interstellar mission "is one of the most challenging problems that humanity is ever going to face," David Kipping, the scientist behind the idea for TARS, toldSpace.com.
