Tag Archives: 4.5BillionYearOld

Scientists have identified what may be the first direct evidence of material left over from the “proto-Earth,” a primordial version of our planet that existed before a colossal moon-forming impact reshaped it forever. The study, published Tuesday (Oct. 14) in the journal Nature Geoscience, suggests that tiny chemical clues of this proto-Earth have survived deep within Earth’s rocks, essentially unaltered, …

Chemical Fingerprint Found From 4.5-Billion-Year-Old Proto-Earth  Ancient Origins Geologists discover the first evidence of 4.5-billion-year-old “proto Earth”  MIT News Potassium-40 isotopic evidence for an extant pre-giant-impact component of Earth’s mantle  Nature “They Found Earth’s Missing Piece”: This MIT Discovery Reveals Traces of the Original Planet Still Hidden Beneath Our Feet (and It’s Shocking)  Rude Baguette 4.5 billion-year-old proto-Earth fragments found in Earth’s mantle  The Brighter …