On Sept. 22, Earth joined two other worlds in the solar system where it is northern autumn. At this NASA Web site, learn more about Earth’s September equinox and ponder the bizarre seasons of other planets.
Go to: http://science.nasa.gov/headlines/y2000/ast22sep_1.htm?list110076
Use up and down arrow keys to explore.Use right arrow key to move into the list.Use left arrow key to move back to the parent list.Use tab key to enter the current list item.Use escape to exit the menu.Use the Shift key with the Tab key to tab back to the search input.
