... Will this year's Leonid meteor shower be as good as last year's? No one knows for sure. Possibly, however, in the waning nighttime hours of November 18 and lasting throughout much of November 19, sky gazers across the globe may get their last chance ever to see a meteor storm. ... The Richat Structure in the Sahara Desert of Mauritania is easily visible from space because it is nearly 50 kilometers across. ... Journey to the Center of the Galaxy . ... Liftoff With the Space Shuttle . ...