The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for decades. Now, researchers think they have a good explanation for a warmer, wetter ancient Mars. Building on prior theories describing the Mars of yore as a hot again, cold again place, a team has determined the chemical mechanisms by which ancient Mars was able to sustain enough warmth in its early days to host water, and possibly life.
source https://www.sciencedaily.com/releases/2025/01/250128123630.htm
Researchers discover how to turn one germ's drug resistance into an
Achilles' heel
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Decades of reliance on the antibiotic rifampicin have fueled the rise of
drug-resistant Mycobacterium tuberculosis (Mtb). But as the bacterium
mutates to p...
10 hours ago
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