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

Is the rest of the cosmos a pristine environment awaiting the arrival of humanity’s “post-human” descendants? Or is advanced ...

The octopus is one of the strangest animals ever to evolve. With 500 million neurons—most of them located in its eight arms rather than its brain—it can solve puzzles, recognize individual people, ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

Alien director Ridley Scott eventually returned to the franchise, but couldn't complete his ambitious plans. Here's what his ...

Teetering near endangered status, the starlet sea anemone produces “an ancient mechanism” for fighting viruses that ...

Theological debates suggest alien encounters might challenge religious traditionalists more than dismantle faith.

What if consciousness isn’t limited to brains like ours? Philosophers Eric Schwitzgebel and Jeremy Pober argue that ...

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

A biologist specializing in invasive species has partnered with a former Pentagon strategist in pushing NASA to construct a ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet K2-18b, most experts do not yet think alien life has probably been found.