Mars rover Perseverance finds interesting rock that may have harbored microbial life billions of years ago
Analysis by instruments on board the rover shows that the rock has qualities that meet the definition of a possible indicator of ancient life. The rock contains chemical signatures and structures that could have been formed by life billions of years ago, when there was flowing water in the area the rover was exploring. The science team is considering other explanations for the observed features, and further research will be needed to determine whether ancient life is a valid explanation.
Global warming or Ice Age? Dangerous games of carbon dioxide
According to research by experts from the University of Colorado Boulder, more and more fresh water has been entering the Arctic Ocean over the past two decades. If this trend continues, the freshening of the North Atlantic could disrupt ocean currents, the authors of the study fear. During the last ice age, the Earth experienced the highest increase in CO2: 14 parts per million in just 55 years. Deep beneath the ice of Antarctica, a giant river system has been discovered that existed 40 million years ago.
Scientists have proven: there are asteroids – piles of rubble that carry water, carbon and amino acids
Scientists have proven that there are asteroids that are resistant to external influences. This means that the tested methods are not suitable for protecting the Earth from such objects. Scientists have discovered possible “seeds of life” in the matter of asteroids: The idea that life originated outside our solar system has been around for a very long time, and now analysis of new asteroid samples is providing evidence for this “panspermia” theory.
Carbonaceous materials from an asteroid, chelates and soda lakes: scientists are closer to understanding the origin of life
The research results may explain how life arose on Earth and can also be applied to other planets and bodies in the solar system and to exoplanets.
Scientists blame rotting trees for excess greenhouse gases
Rotting wood releases up to 10.9 gigatons of carbon, equivalent to 115% of fossil fuel emissions, an international research team reports.