NASA's EM Space Drive Is Still Not a Thing

2015 was not the year scientists disproved the conservation of momentum so, uh, 2015 is also not the year NASA figured out interstellar travel. But that didn’t quell frothing excitement over the electromagnetic propulsion drive, which could conceivably thrust us into the farthest reaches of space without propellant. If it worked. And so far, the evidence is pretty nonexistent. Yes, still.