Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...

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

It would be nearly impossible to make the Earth as inhospitable to life as the planet Mars — not that we aren’t trying. And ...

Busting myths; how a drop of water changed a girl’s life; a tribe’s respect for fishes; and more: picks from columnist.

K2-18 b is 8.6 times as massive as Earth and has a diameter about 2.6 times as large as our planet. It orbits in the "habitable zone" - a distance where liquid water, a key ingredient for life ...

Bold claims of ‘biosignature’ molecules trigger an outpouring of scepticism.

K2-18 b is 8.6 times as massive as Earth and has a diameter about 2.6 times as large as our planet. It orbits in the "habitable zone" - a distance where liquid water, a key ingredient for life ...

Astronomers claim they've found the most promising signs of possible life on a planet outside of our solar system.

Stories at the Crossroads of People and Nature," David B. Williams slows down and takes a close look at Seattle.

and hydrogen that on Earth has only one known source: ocean algae. The finding suggests that the planet may have oceans of its own that contain life. Astronomers at the University of Cambridge who ...

In The Decline and Fall of the Human Empire, science writer Henry Gee considers how long we’ve got, and how we can extend our ...

The search for life beyond Earth has led scientists ... “It’s the first time humanity has seen potential biosignatures on a habitable planet.” The study was published Wednesday in the ...