EghtesadOnline: Droplets of glass dug up in New Jersey and from the Atlantic seabed indicate a comet or some other extraterrestrial object may have smacked Earth 56 million years ago, roughly 10 million years after the asteroid impact that doomed the dinosaurs.

EghtesadOnline: America's new commercial astronaut capsule completed its demonstration flight on Friday with a splashdown in the Atlantic Ocean.