The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

Some frogs have evolved features so strange that scientists struggle to explain them, and a few look less like amphibians ...

A planet with twice Earth's gravity produces creatures with different skeletal requirements, different muscular architecture, ...

Some periods in Earth's history are so different from our own that they may as well belong to another planet. Many people are ...

In the book version of “Project Hail Mary,” author Andy Weir, known for grounding his fiction in plausible science, describes ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

A mind wrapped in skin and bone can feel like the obvious model for consciousness. But that assumption may say more about where you live than about what consciousness really requires.

A new study suggests Earth may have been sending tiny hitchhikers to Venus for billions of years. Researchers found that asteroid impacts could launch microbes into space, where some might survive the ...

A unique cache of plant fossils from volcanic deposits in New Mexico contradicts the common narrative that flowering plants ...

A column by Winona LaDuke, an Ojibwe writer and economist on Minnesota’s White Earth Reservation. She also is co-curator of ...

Octopuses, bees, and dogs all process information differently. Even within the narrow confines of one planet, evolution produced a wide range of nervous systems rather than a single design. A new ...