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A 56 million-year-old fossil bone helps explain how this (mostly) flightless family of birds spread to so many different continents.

An unlikely partnership between a utility and climate activists managed to convert a community to geothermal heating and cooling. Science correspondent Miles O'Brien reports on this project for our energy and climate series, Tipping Point.

The John D. and Catherine T. MacArthur Foundation announced its 2025 class of fellows on Wednesday, a prize often called the "genius award."

This natural phenomenon often leads to a more intense Atlantic hurricane season. However, experts say this La Nina may be too weak to cause significant disruption.

Priscilla could bring flash flooding through the weekend across the U.S. Southwest, the U.S. National Hurricane Center in Miami said.

Priscilla on Tuesday approached major hurricane status, but by Wednesday morning forecasters say it was a Category 1 storm.

From its embrace of dubious research about autism, its skepticism over vaccines and its wholesale rejection of the consensus about climate change, the Trump Administration has set off alarm bells within the scientific community. William Brangham ...

The 2025 Nobel Prize in chemistry will be announced Wednesday. Watch here at 5:30 a.m. EDT.

The June 20 twister in Enderlin, North Dakota, killed three people and caused significant damage.

The 2025 Nobel Prize in physics will be announced Tuesday.