Energy/Environment

As Valentine's Day approaches, we take a look at monogamy and its alternatives among animals — including humans.

Elephants use their trunks much like a human uses their hands: to pick up food and manipulate objects. A new study finds that tiny, specialized whiskers on elephant trunks help them do it.

Our brains aren’t wired to like the uncertainty that comes with change.

The fight to slow human-caused climate change has taken another major setback.

The four are set to dock with the space station on Saturday, returning the orbital lab to its full complement of seven. NASA's last mission, Crew-11, left a month early due to an ill crew member.

A massive star in the nearby Andromeda galaxy has simply disappeared. Some astronomers believe that it's collapsed in on itself and formed a black hole.

Veronika is a brown cow. Her ability to employ tools with multiple uses leaves her in the company of only two known species: humans and chimps.

On a trip through North East Washington in the 1970s, couple Lynn and Becky Miner fell in love with the stunning nature around them.

Skiers would typically use waxes with PFAS to lubricate their skis to go downhill faster.

Starting Thursday, the Environmental Protection Agency will no longer regulate pollutants from fossil fuels, such as methane and carbon dioxide, under the Clean Air Act.