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Facebook Twitter 100 Hours of Astronomy. Asteroid Watch. Recent News February 5, 2015NASA's Dawn spacecraft, on approach to dwarf planet Ceres, has acquired its latest and closest-yet snapshot of this mysterious world. › Read more January 27, 2015NASA's Dawn spacecraft has returned the sharpest images ever seen of the dwarf planet Ceres. › Read more January 22, 2015There has been a significant increase in the amount of water "pouring" out of the Rosetta mission's comet. › Read more › More news Next Five Close Approaches Average distance between Earth and the moon is about 239,000 miles (385,000 kilometers).

Asteroid Watch

The Asteroid Watch Widget tracks asteroids and comets that will make relatively close approaches to Earth. Hello From Earth. International Meteor Organization. NASA Art. Be A Martian. The Gateway to Astronaut Photography of Earth. We Choose the Moon. March to the Moon.