Comets and asteroids preserve the building blocks of our solar system and should help explain its origin. But there are unsolved puzzles. For example, how did icy comets obtain particles that formed ...

Although its origins are still hazy, interstellar objects like 'Oumuamua may be the product of wandering planets in young planetary systems. When you purchase through links on our site, we may earn an ...

What processes provide energy to the solar wind as it travels away from the Sun and throughout the solar system? This is what a recent study published in Science hopes to address as an international ...