Comets and Asteroids represent the News and Announcements page. We believe they provided all the water that exists in the inner solar system, including our oceans.
Several missions are now in flight and being planned to visit comets and asteroids.
The most recent is the Stardust mission that launched Feb. 7, 1999. You may access the most current information about Solar System Exploration in several ways. You will find all the announcements that are specific to one of our audiences on the respective page. General announcements can be found on this page.