An error has occurred. Please try again. With a The Portland Press Herald subscription, you can gift 5 articles each month. It looks like you do not have any active ...

Optical illusions are no doubt interesting. At the same time, they often leave people baffled. Just like this optical illusion that may leave you scratching your head. What is even more interesting is ...

Not all poisonous gases have a smell or a color. But a tiny grid of pastel- and candy-colored squares that effectively "sniffs" out hazardous chemicals in the air such as chlorosarin—a highly toxic ...

NEW YORK (AP) — Visitors to Times Square got a small preview of New York City’s famed New Year’s Eve party on Friday, as the event's organizers heaved handfuls of colored paper skyward in a ...