President Trump signed an order Thursday aimed at making it easier for companies to mine the ocean floor. Scientists and environmental groups say it could harm a fragile ecosystem.

Researchers using data from the James Webb Space Telescope recently announced they had detected biosignature gases on planet K2-18b. A new analysis of the same data casts doubt on the earlier findings

Last year, more than 9 million people watched across the world, and executive producer Johan Erhag said he expects viewership will be even higher this year.

Rockalina was an adult eastern box turtle living in the wild when she was taken into a New York home in 1977. When a reptile rehabilitation center got a hold of her this February, they worried for her survival.

The pre-dawn sky will feature a glowing crescent moon, joined by planets Mercury, Venus and Saturn.

Experts are divided whether a new missile defense system for the U.S., inspired by Israel's Iron Dome, would be worth the cost.

Despite improvements in air quality in past decades, 156 million Americans still breathe in too much soot or ozone, says the annual State of the Air report from the American Lung Association.

The National Institutes of Health plans to pool information from private sources like pharmacies and smartwatches.

A lawsuit alleges the Trump administration violated the free-speech rights of nonprofits and municipalities that have had federal funding for climate and environmental projects frozen or cancelled.

Thirty artists release songs with nature sounds to generate royalties for nature conservation in second annual United Nations Earth Day mixtape.

Spring brings lambing season, a time of hard work and long hours for farmers. But it's also a time made joyful by cuddly newborns.

At a time when communities feel fractured, here's a look at online communities taking a pragmatic approach to changing the world for the better.

The Trump administration is reinterpreting a key word in the Endangered Species Act that could have big consequences for the habitats of species at risk.

Nearly 300 U.S.-based researchers have applied to one program that promises "scientific refugee status" for those fleeing Trump's academic funding rollbacks.

The James Webb Space Telescope may have detected life-associated gas in the atmosphere of a far-off planet. The news is being greeted with both enthusiasm and skepticism.