Thursday, October 16, 2025

A giant asteroid hit Earth, but its crater is missing

Researchers discovered a new field of ancient tektites in South Australia, revealing a long-forgotten asteroid impact. These 11-million-year-old glass fragments differ chemically and geographically from other known tektites. Although the crater remains missing, the find exposes a massive event once thought unrecorded, offering clues to Earth’s tumultuous past and planetary defense.

from Top Health News -- ScienceDaily https://ift.tt/2GYCw3j

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Scientists discover why some DNA-doubled cells refuse to die

Scientists have uncovered a surprising twist in how cells behave when division goes wrong. Sometimes a cell successfully copies its DNA but ...