A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

The International Astronomical Union (IAU) currently recognizes five dwarf planets in our solar system, though there are likely many more. The most famous of the bunch is Pluto, way out beyond the ...

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 ...

Travelling through the asteroid belt, the European Space Agency’s Hera spacecraft has taken its first images of asteroids. The spacecraft is heading toward asteroid 65803 Didymos and its companion ...

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically through the system, smashing into each other in collisional cascades. Over time ...

NASA is also tracking a building-sized asteroid named “2025 YC3”, with a diameter of around 260 feet, and another bus-sized ...

The Vera C. Rubin Observatory is expected to find millions of unknown objects in our solar system, and perhaps even a mysterious Planet Nine. By Kenneth Chang Kenneth Chang visited the Vera C. Rubin ...

NASA's Lucy mission is key to helping us understand the early history of our solar system as it studies asteroids like the Donaldjohanson. Named after the paleoanthropologist who co-discovered the ...

Karl Ludwig Harding discovered the asteroid Juno on September 1, 1804, using a 5-centimeter refracting telescope. Harding's discovery was part of a larger effort by the "Celestial Police" to locate a ...