NASA Mission to Map Sun's Protective Bubble Could Help Better Predict Dangerous Space Weather

The Sun is an energetic star, constantly radiating energy and pumping streams of charged particles out into space. And while this solar wind can be dangerous in itself, without it, Earth and all the other members of our planetary system would be at constant risk of threats from outer space. Our host star creates a protective bubble called the heliosphere that extends far beyond the orbit of Neptune, shielding the planets from the interstellar medium. Yet though we may owe our existence to this bubble, scientists know relatively little about...