How do we choose which planets to search for life?
Scientists used computer models to determine how likely a planet is to be habitable by its age, size, and distance from its sun.
Category: Astrobiology & Space Science
Microbes entombed in ancient salts could help search for life on Mars
Geologists discovered microbes trapped in 830-million-year-old salt minerals similar to those found on Mars.
Discovery of a bacterium 10,000 times larger than normal surprises microbiologists
The living organisms that we see around us are made up of billions or even trillions of cells. Multicellular organisms are often considered…
Why did a bunch of asteroids hit the Earth billions of years ago?
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.…
Future telescopes could search for alien farms
Simulations suggest that the light observed from a distant planet around another star might be able to show evidence of ammonia and nitrous…
A crater lake on Mars was racked by ancient flash floods
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…
Ancient bacteria leave behind fossils, too!
Scientists used genetic technology to identify the different roles of bacteria present in ancient fossil formations called stromatolites.
Salt pools can guide our search for life on other planets
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.
Bacteria found with superpowers that let them survive in space
Scientists who study how humans might travel through space found a handful of specific genes that give bacteria some cool superpowers.
A detailed look at a rare meteorite
A carbonaceous meteorite that fell in Costa Rica holds organic compounds that are preserved from the earliest stages of our solar system,…