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Realtors around the U.S. are being asked to explain how data centers could affect home values. But a new study shows there is no universal answer.

Can NASA’s most powerful telescope detect key ingredients for life as we know it?

Gross science: This parasite crawls into a fish’s mouth and replaces its tongue.

In the early 1900s, timber was an essential US product. Premieres Feb. 3 on PBS

A U.S. Government film on the procedure for the dispersion of a biological weapon.

John Legend as Jesus Christ preaches, "save tomorrow for tomorrow" in this opening number.

This 1940s footage shows Pennsylvania Dutch rolling and molding hard candy.

There’s more to this presidential piece of furniture than meets the eye.

A Jewish immigrant from Russia, William F. Friedman became a codebreaker for the U.S.

How can we convert the Sun’s light and heat into energy we can use?