For the first time in 180 years, descendants of the extinct Floreana giant tortoise are reclaiming their ancestral homeland.

New images from the highest-resolution camera ever to orbit Mars show striking new details in diverse terrains that surface the planet. New images from the High Resolution Science Imaging Experiment ...

Physicists at the University of Massachusetts Lowell developed a camera launched high into the atmosphere on a balloon early this month that will be used to help scientists develop theories about how ...

NASA estimates that roughly 25,000 near-Earth asteroids measuring at least 140 meters across orbit in our planetary neighborhood, but surveys have so far cataloged only about 40% of them. That gap ...