NASA NEO Program Office at JPL. Overview, press releases, FAQ, 3D orbit viewer. Research information and statistics, including risk calculations for possible collisions with Earth.
Asteroids and comets are believed to be ancient remnants of the earliest years of the formation of our solar system more than four billion years ago. From the beginning of life on Earth to the recent spectacular impact of Comet Shoemaker-Le...
Dawn Mission: A journey to the beginning of the solar system. Dawn will provide new answers to the questions about formation and evolution of the early solar system. The Dawn Mission marks the first time a spacecraft will orbit two planetar...