You're just going to have to wait a little longer for an all-female spacewalk. NASA astronauts Christina Koch and Anne McClain were scheduled to walk together in the historic moment, but NASA has pulled the event due to suit availability on the Inter... ...

A big idea in thermodynamics is the mechanical equivalent of heat, a concept that spells out how moving objects and changing temperatures relate. ...

The country is getting closer to the solar home revolution: a panel on every roof, an EV in every garage, and a battery in every basement. ...

Anyone who wants to deal with climate change may have only a brief window to sell the public on a plan. ...

Two decades ago, a new form of genetic testing helped send a man to prison. But the case exposed the limits of using complicated forensics in a criminal trial. ...

Most advanced-stage cancers mutate, resisting drugs meant to **** them. Now doctors are harnessing the principles of evolution to thwart that lethal adaptation. ...

New methods are making it easier than ever to produce life-saving vaccines—and life-taking viruses that humanity is not prepared to fight. ...

During development, cells seem to use statistics to figure out what identities they should take on. ...

In Nebraska and Iowa there's a brown sea where there should be homes, roads, gas stations, and open country.  Historic floods have deluged vast swaths of the Midwest — even flooding a third of the U.S. Air Force base that houses the nation... ...

Some of us Earthlings may see dancing, green lights in the sky on Saturday night. The sun blasted out a flare of energized particles into space on March 20, and the National Ocean and Atmospheric Administration's (NOAA) Space Prediction Center foreca... ...