Scientists used computer models to determine how likely a planet is to be habitable by its age, size, and distance from its sun.
Geologists discovered microbes trapped in 830-million-year-old salt minerals similar to those found on Mars.
The living organisms that we see around us are made up of billions or even trillions of cells. Multicellular organisms are often considered…
The first cells of life on Earth had a lot to contend with. Conditions were harsh and unpredictable. The air was thick with volcanic gases.…
Simulations suggest that the light observed from a distant planet around another star might be able to show evidence of ammonia and nitrous…
One picture from the surface of Mars can tell us an entire story about the history and formation of that place. Often, the similarities and…
Scientists used genetic technology to identify the different roles of bacteria present in ancient fossil formations called stromatolites.
Pink, green, and square-shaped microbes can help us understand the limits of life on Earth and guide our search for life outside the planet.
Scientists who study how humans might travel through space found a handful of specific genes that give bacteria some cool superpowers.
A carbonaceous meteorite that fell in Costa Rica holds organic compounds that are preserved from the earliest stages of our solar system,…