Lying between Mars and Jupiter is a massive ring of rock debris—the asteroid belt. Now thin, it’s fading away gradually. In a new study, planetary scientist Julio A. Fernández of Uruguay’s Universidad ...

Forgot what science-fiction has told you, flying through an asteroid belt would be a major challenge for anyone.

Scattered between the orbits of Mars and Jupiter lies the main asteroid belt — a vast region filled with rocky remnants left over from the birth of the solar system. These objects, known as asteroids ...