#years ago

New research led by the University of California, Berkeley reveals that beyond Neanderthals and Denisovans, humans interbred with two mysterious ‘ghost’ lineages: one in Africa more than 50,000 years ago, another in Eurasia over 1.7 million years ago

TEN YEARS AGO TODAY: Obama built that. Brick by brick by brick. Same w/ the 6 officers shot in Baton Rouge ten days later (July 17, 2016). 3 died outright, with a 4th succumbing to his wounds in May, 2022. pic.twitter.com/8nsHQzrLoZ — Marie von Astra

Paleontologists working in Brazil have identified a previously unknown species of archosauriform that lived about 240 million years ago and may belong to a poorly understood group of ancient reptiles that closely resembled the ancestors of crocodiles

The interstellar comet 3I/ATLAS carries a chemical fingerprint unlike anything in our Solar System, and it may have formed 10 to 12 billion years ago, before our Sun even existed, according to two papers published in the journal Nature.

A Sahara meteorite holds the first direct evidence of a Moon-to-Mars-sized protoplanet that orbited the young Sun before being destroyed 4.5 billion years ago.