Is 'Oumuamua a comet — or an alien spaceship? We may never learn for certain the identity of the oblong, stadium-size space object that was seen speeding past Earth in the fall of 2017, but a new ...

A simple floating cork in garden water can prevent hedgehog drownings in winter and help protect this threatened species at home.

Digital versions of Where’s Waldo? or I-Spy, also known as hidden object games, are mechanically simple yet dizzyingly complex. The premise of finding items hidden in crowded spaces can create visual ...