Tag

Molecular Clocks

All articles tagged with #molecular clocks

Aging clocks promise time-to-death—but I’d rather not know
opinion2 months ago

Aging clocks promise time-to-death—but I’d rather not know

Op-ed writer Helen Pilcher examines a new Harvard-led “molecular clock” that claims to measure biological age and predict time to death, noting it’s still for research and could speed anti-aging trials or inform policy. She cautions that such results are probabilistic and can shape how people view aging—something she would rather not know—preferring to focus on healthier living despite the Kardashians using a similar test as an example.

Ancient Microbes May Have Emerged in Earth's Harsh Hadean Era
science4 months ago

Ancient Microbes May Have Emerged in Earth's Harsh Hadean Era

New geochemical data and molecular-clock analysis suggest life could have arisen during Earth's fiery Hadean period, about 4.4–4.2 billion years ago, with LUCA as the Last Universal Common Ancestor and LECA leading to modern eukaryotes; evidence points to liquid water despite extreme conditions, and ongoing genome recovery efforts may further refine when these ancestral stages appeared.