There are roughly 1.1 million debris fragments larger than 0.04 inches and about 40,500 fragments larger than 4 inches in orbit according to the ESA. NASA states that debris can reach speeds of 18,000 ...

National Geographic celebrates Earth Month with some flightless, feathered friends in "Secrets of the Penguins," streaming ...

Buying refurbished can help you save some green while going green. Not all refurbs are created equal, but these sales earned ...