…past. We need to understand life before us, if we want to understand life ahead of us and life elsewhere.” Reference: “Resurrected nitrogenases recapitulate canonical N-isotope biosignatures over two billion…
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…on the planet. (Artist’s concept.) Credit: SciTechDaily.com Massive impacts had a silver lining for life. Billions of years ago, long before life as we know it emerged, meteorites regularly bombarded…
…atmospheric studies. The planet’s eccentric orbit may allow water to shift between ice and liquid states, raising exciting possibilities for life. Credit: SciTechDaily.com A newly discovered super-Earth, HD 20794 d,…
…life is rapidly improving due to advances in DNA sequencing technology. A vast DNA tree of life brings open access DNA sequences of more than 9,500 flowering plants was recently…
…of complex life on a planet. Solar systems with life-bearing planets may be rare if they are dependent on the presence of asteroid belts of just the right mass, according…
…its icy shell — an ocean that might harbor alien life. NASA’s Europa Clipper mission is on a quest to investigate whether the conditions for life exist beyond Earth. https://youtu.be/BBBkbTWTWLU…
…understanding the Origins of Life.. Credit: NASA’s Goddard Space Flight Center Conceptual Image Lab Early Earth’s Biochemical Challenges The emergence of life on Earth from simple chemicals is one of…
…the planetary context in which the detection of methane in an exoplanet’s atmosphere could be considered a compelling sign of life. If life is abundant in the universe, atmospheric methane…
…Earth’s atmosphere could help us identify signs of life beyond our solar system. When did the Earth reach oxygen levels sufficient to support animal life? Researchers from McGill University have…
…Martian Rocks as Energy Source for Ancient Life Forms “We can assume that life forms similar to chemolithotrophs existed there in the early years of the red planet,” says astrobiologist…
…key factor for sustaining life on Earth, it is not a requirement for life to originate on a terrestrial-like planet. “We found there wasn’t plate tectonics when life is first…
…climate change; and 3) investments in rural infrastructure to reduce post-harvest losses and marketing margins, improve the profitability of agriculture and increase the food supply. These models differ from previous…
…harder to grow food and vegetables. Fish populations dwindling also changes human nutrition. The chemicals used to stretch depleted soil or to help sick agricultural plants survive can contribute to…
…vulnerability to climate change. According to a recent study in Nature Climate Change, fish are adapting their hunting and feeding patterns in response to warmer ocean temperatures, a shift that…
…conditions, finding that today’s “500-year floods” could, with climate change, occur once every 25 to 240 years. The researchers published their results in the current issue of Nature Climate Change….
…could either help reduce climate change or make it worse. These bugs are tiny, but their impacts can really scale up. We need models like this to understand how.” Dr….
…worsen in future climate change simulations. “Our study also shows that if we work hard to slow climate change it is not too late to save the world’s temperate rainforests….
…warms due to climate change, the plumes of ash and gas emitted by large, but infrequent, volcanic eruptions will rise ever higher. Climate change will also accelerate the transport of…