A common mineral, α-alumina, found abundantly in Earth's crust, may have played a critical role in initiating the chemical ...

which are organic molecules that are chemical building blocks of life on Earth and help form cell membranes. But such compounds can also be formed without the presence of life, created when water ...

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

Astronomers have detected molecules on exoplanet K2-18b that may have been produced by simple organisms, claiming it's the ...

Astronomers have a lot of thoughts about the latest paper claiming we’ve found the strongest hints of alien life yet on the distant planet K2 18b.

"We are really trying to understand how far we can go, chemically, toward larger biological molecules and what environments ...

A team of scientists just discovered the longest organic molecules yet seen on Mars, the fourth planet from the Sun and and a tantalizing venue for humankind’s search for life beyond Earth.

Thus, the provenance and distribution of these molecules are of high interest in the search for potential biosignatures on Mars.' Searching for further life-like chemistry on Mars will be one of ...

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

The longest organic molecules identified to date on Mars have ... It therefore dates from the period during which life first emerged on Earth. 1 -- From the " Atmosphères et observations ...