When our satellites search for other planets that might harbor life, they always search for water. But now, for the first time, astronomers have detected around a burgeoning solar system a sprawling cloud of water vapor that’s cold enough to form comets, which could eventually deliver oceans to dry planets. And with oceans, life could spring up–or maybe migrate to the planet from another place.
read more
One reason we may not have discovered the definitive answer to the question of whether there is life on Mars is because we have not used the right TOOLS to detect it. But now NASA is getting ready to send a life-detection tool to Mars that is 1,000 times more sensitive than previous instruments. Astronomer Jeffrey Bada says, "The bottom line is that if life is out there, the high-tech tools of chemistry will find it sooner or later. It certainly is starting to look like there may be something alive out there somewhere, with Mars being the most accessible place to search."
read more
In a laboratory in San Diego, a team of chemists and biologists are trying to create life in a test tube filled with liquid. Scientists don’t all agree on what the definition of life is, but they DO agree that it must have the ability to evolve and adapt. This gives us an idea of how to recognize life if should find it on another planet.
read more
Astrobiologist Richard B. Hoover has discovered evidence of microfossils that resemble bacteria in fresh (so they couldn’t have become contaminated later) slices of the interior surfaces of 3 carbon-filled meteorites. After looking at them under an electron microscope, he has determined that they resemble bacteria found on Earth. His conclusion? These are not Earthly contaminants but are the fossilized remains of living organisms which lived in these meteors, which are rocks that impacted Earth from space. The incredible implication of this discovery is that life is EVERYWHERE, and that life on Earth may have come from other planets.read more