March of Dimes' annual report on infant and maternal health drops the U.S. from a C- to a D+, citing a 15-year high in the preterm birth rate. But it also offers some encouraging signs and solutions.

Witnesses saw a "flaming basketball" streaking across the sky, then heard a loud crash, then Dustin Procita's house went up in flames. But that may be a coincidence, not the fire's cause.

The online tool tracks power plants, oil refineries, large ships and other sources of greenhouse gases. Gore plans to expand the tracker to observe every major source of emissions.

Details about the X-37B's 908 days spent orbiting Earth are scant. But with each new mission, we learn a little bit more about it.

The war has hammered Ukraine's health care budget, leaving some patients without access to care. U.S. hospitals are helping to fill the gap.

Kate Sweeny, who studies the psychology of waiting, says it's normal to stress about uncertainty. Her suggestions for coping include changing your mindset, taking action and finding deep distraction.

Two decades of research in Nouabalé-Ndoki Park in the Republic of Congo found the primates foraging alongside each other, wrestling, seeking out their pals — and occasionally making threats.

A documentary crew with the History Channel initially made the discovery during a dive looking for World War II-era wreckage.

Russia's war in Ukraine also threatens to wreck climate goals, members of Congress arrive, and an actor changes his name to draw attention to global warming

Private investment is crucial to addressing climate change. But a big barrier to private investment in developing countries is the perception that risks are higher than in industrialized nations.

In the wee hours of Tuesday morning, the moon fell completely into Earth's shadow and turned a shade of red — either an astronomical delight or Election Day omen, depending on who you ask.

More than a third of U.S. states now support the idea of making daylight saving time permanent. It's already in effect for about eight months of the year.

Scientists wanted to learn whether bees, like humans and other mammals, had any interest in playing for fun's sake. They say they have evidence that bees do, and that could change how we view insects.

The Mars Rovers Opportunity and Spirit were expected to remain operational for 90 days. Fifteen years later, Oppy was still roving, as the new documentary Good Night Oppy chronicles.

Ahead of the U.N. climate change conference, CEOs of huge food corporations, including Mars, PepsiCo and McDonald's, are making regenerative agriculture commitments.