Is Our Solar System Shaped Like a Deflated Croissant?
Our solar system's protective bubble may not be comet-shaped after all.Scientists have traditionally posited that the heliosphere, the huge bubble of charged particles that the sun blows around itself, has a rounded leading edge, where the solar system barrels through space, with a long tail streaming behind it. But the heliosphere's true shape is weirder and more complex, a recent study suggests something akin to a deflated croissant.