Sentences with phrase «biological life on planet earth»

all land plants would be damaged or destroyed, temperatures [would] plummet for several months,... All biological life on planet earth would be gravely threatened» (p. 7) We hold the powers of life and death within our hands, declare the bishops.

Not exact matches

Marshall and his colleagues proved the concept of testing for vanadium on known microfossils with acknowledged biological origins on Earth — organic microfossils called acritarchs that might not be far from the kinds of traces of life possibly existing on the Red Planet.

We still have no idea whether any planet beyond Earth harbors life, but that could soon change too: Scientists are increasingly optimistic that they will find evidence of biological activity on an alien planet within the next few years.

If there is life on the Red Planet — even just alien microbes clinging to existence in isolated refuges — any biological contamination we import from Earth could cause an ecological and scientific catastrophe

In the end, he argues that understanding the interplay between Earth's geological and biological pasts can help us predict and prepare for the future of life on our planet.

As impact glass is a ubiquitous substrate on rocky bodies throughout the Solar System and likely common on the early Earth, the preservation of biological activity in impact glass has significant astrobiological implications for life on early Earth as well as for the search for life on other planets.

Such planets may contain an atmosphere, liquid water, and other ingredients that are required for biological life on Earth.

ASU astronomers will join with geophysicists and geochemists in a $ 6.1 million grant to ASU's School of Earth and Space Exploration that will try to explore how to tell whether chemical signs of life on distant planets arose from geological processes or biological ones.