NASA Asteroid Watch... JPL's widget tracks asteroids and comets that will make relatively close approaches to Earth. The Widget displays the date of closest approach, approximate object diameter, relative size and distance from Earth for each encounter. The object's name is displayed by hovering over its encounter date. Clicking on the encounter date will display a Web page with details about that object.
- Release notes were unavailable when this listing was updated.
- OS X 10.4 or later