Researchers found LUCA, our earliest common ancestor, lived 4.2 billion years ago. It had a complex biology, affecting its ...

A camera affixed to the International Space Station recently spotted some curious symbols amid a barren desert landscape.

Longtime NASA astronaut Don Pettit is set to return from his fourth trip to space on Saturday night. Here are some of his ...

The exoplanet K2-18b could harbor a massive ocean, but scientists will need to study the planet more to see if it’s really ...

A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b. But ...

The discovery was made on a massive exoplanet known as K2-18b that for years has captivated scientists searching for life ...

The NASA satellite image shows rust-red rock formations in Wyoming—evidence of 220-million-year-old 'megamonsoons'.

The potential discovery of life elsewhere is down to the unprecedented sensitivity of Nasa's James Webb Space Telescope.

The findings suggest that there are many more targets of opportunity for locating potentially habitable worlds across our ...

While the Webb Telescope watched exoplanet K2‑18b glide across its parent star, sulfur‑bearing gases appeared in the planet’s ...

Even in the best of circumstances, however, talk of a biosignature is an invitation to scientists to think of alternative ...

ELVIS, or Extant Life Volumetric Imaging System, is a holographic microscope that can deliver detailed 3D views of cells and microbes.