Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system. These embryos, somewhere between small planetesimals and fully formed planets, ...

Because their orbits are unstable, a possibility exists that the asteroids could break off from their current trajectory and one day head on a collision course for Earth. The Venusian space rocks are ...

New research on the orbits of these mysterious asteroids near Venus stress the need for better space rock surveillance. NASA's Parker Solar Probe captured this image showing the nightside surface of ...