Author: Scientific American

British climbers recently reached the top of Mount Everest in record time. They inhaled xenon gas before the trip. But was that the decisive factor?

Since 1966 NASA’s Goddard Institute for Space Studies has been at the forefront of Earth and planetary science from its location in upper Manhattan. Now a Trump administration directive is ejecting its scientists to parts unknown

A celestial object some 15,000 light-years away is emitting bright flashes of radio and X-rays that scientists are struggling to explain

The largest, most powerful launch vehicle ever built is meant to be a key part of SpaceX’s plans to send humans to Mars—and NASA’s plans to return astronauts to the moon, too

YouTube star Derek Muller built an 18-million-subscriber YouTube empire by challenging misconceptions about science. Now his own blood test and a sudden EPA reversal give his work urgent relevance.

The latest version of Grok, the chatbot created by Elon Musk’s xAI, is promoting fringe climate viewpoints in a way it hasn’t done before, observers say

A new telescope project called the Next-Generation Very Large Array will revolutionize radio astronomy if it gets the funding it needs

A new study suggests a way to more accurately test sperm health from home.

Behavioral ecologist David Hughes, who consulted on the video game that inspired the hit TV show The Last of Us, speaks about how our experience with the COVID pandemic changed the way we relate to zombie fiction

The One Big Beautiful Bill Act, passed by the House of Representatives last week, would slow efforts to green the energy system as climate change accelerated