SpaceSaturn’s rings formed in a smash-up less than 100 million years ago Some of the Cassini spacecraft’s final measurements of Saturn’s gravitational field show that its rings are younger than we thought, and its winds run deeper News
SpaceEarth may be made up of rocks blasted by gusts of solar wind The area in our solar system within Mercury’s orbit is empty, which may be because solar winds threw all the rocks farther out, where they helped form planets News