Even “clean and normal” American homes are crawling with an average of about 100 species of arthropods, or insects and spiders, a team of researchers …

Even at the White House, they watched it first on TV. When the Space Shuttle Challenger exploded 30 years ago—on Jan. 28, 1986—and killed the …

It takes a bold person to declare that interstellar travel is now within our grasp. Physicist Stephen Hawking has shown that he is just that, …

A massive heat wave stretching from sea to shining sea is hitting the U.S. this week, promising temperatures well above 100°F in large swaths of …

A new species of tarantula discovered near Folsom State Prison in California has fittingly been named for the country singer Johnny Cash, who memorialized the …

Modern science can enhance your alertness, athletic performance, sex drive, health—and even your mind. “Cognitive enhancement” drugs, also known as “smart pills” can boost attention …

Going green is the latest corporate trend—but it can be tough to separate the companies that are actually making major environmental commitments from those that …

A judge in the United Kingdom confirmed Thursday that former Russian agent Alexander Litvinenko, who died in London in 2006, was killed by a fatal …

Lake Kivu, straddling the borders of Rwanda and the Democratic Republic of Congo, offers a landscape of extraordinary beauty, framed by towering volcanoes and lush …

Scallop and salmon are among the species of fish most vulnerable to the warming of ocean waters due to climate change, according to new research. …