Interesting Engineering on MSN10 小时
Mysterious 444-million-year-old fossil has guts, scientists are losing mind
Paleontologists have uncovered a 444-million-year-old fossil with remarkably intact soft tissues, such as muscles, tendons, ...
Supernovas may have played a role in two of Earth’s largest mass extinctions, study suggests
New research suggests the violent explosions of dying stars may have caused two of Earth’s biggest mass extinctions millions ...
National Geographic news13 年
Ordovician Period
But once Gondwana took up its polar position in the late Ordovician, massive glaciers formed over Africa at the supercontinent's center. This heralded a 20-million-year ice age during which ...
IFLScience on MSN11 天
Supernovae Blamed For 2 Of Earth’s Mass Extinctions, The Devonian And Ordovician
Two of Earth’s five confirmed mass extinction events could have been caused by nearby supernova explosions stripping the ...