Continents Move, Life Evolves
13.7 billion years of evolution in 85 seconds.
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Ancient Life ‘Re-Evolves’ in Georgia Lab
Georgia Tech researchers say they’ve resurrected a 500-million-year-old gene from bacteria and inserted it into modern-day Escherichia coli (E. coli) bacteria. The resurrected bacterium has been growing for more than 1,000 generations, providing scientists a chance to observe evolution in action, the university announced. “This is as close as we can get to rewinding and…
Enormous Gas Filament Connects Galaxy Clusters
For the first time, ESA’s Planck space telescope has detected a bridge of hot gas connecting a pair of galaxy clusters 10 million light-years apart. Abell 399 and Abell 401, each containing hundreds of galaxies, are billions of light years away. The presence of hot gas linking them had already been hinted at in X-ray…
Queen of Sheba Left Genetic Legacy to Ethiopians
Ethiopians’s long-ago genetic mixing with populations from Israel and Egypt is a legacy of the Queen of Sheba and her companions, say researchers.
DNA From Prehistoric Yeast Cells Reconstructed
How does evolution innovate? We exist because our ancestors have had the ability to adapt successfully to changes in their environment; however, merely examining present-day organisms can limit our understanding of the actual evolutionary processes because the crucial events have been masked by the passage of aeons — what we need is a time machine….
Earth Supports One-Third Less Life Than Thought
The total mass of life on Earth may be one-third less than thought, altering how active we think life on our planet is, researchers say. Past estimates of how much life there is on Earth suggested living organisms store about 1 trillion tons of carbon, of which about 30% dwells in single-celled microbes in the…
Anti-Matter Universe Sought By Space-Based Detector
A seven metric ton particle detector parked for over a year on the International Space Station (ISS) aims to establish whether there is an unseen “dark universe” woven into the cosmos, the scientist leading the project said. And the detector, the Alpha Magnetic Spectrometer or AMS, has already broken all records in registering some 17…