NOVA: When Whales Could Walk Wednesday, April 2 at 9:00 pm In Egypt’s Sahara Desert, massive skeletons with strange skulls ...
Scientists don't call it the "Great Dying" for nothing. About 252 million years ago, upward of 80% of all marine species ...
The NEO Surveyor fulfills a 2005 act of Congress ordering NASA to catalog 90% of near-Earth objects larger than 459 feet (140 ...