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  1. The Cretaceous Period lasted for nearly 80 million years. Discover what the climate was like in this geological period, where the continents were and what animals and plants lived on them. Find out how an asteroid ended the age of dinosaurs.

    • where did the astronauts come from on earth before dinosaurs1
    • where did the astronauts come from on earth before dinosaurs2
    • where did the astronauts come from on earth before dinosaurs3
    • where did the astronauts come from on earth before dinosaurs4
    • where did the astronauts come from on earth before dinosaurs5
  2. Dinosaurs dominated Earth during the Mesozoic Era. But what was the first dinosaur, what did they look like and where did they come from?

    • where did the astronauts come from on earth before dinosaurs1
    • where did the astronauts come from on earth before dinosaurs2
    • where did the astronauts come from on earth before dinosaurs3
    • where did the astronauts come from on earth before dinosaurs4
  3. Jun 21, 2023 · Dinosaurs roamed Earth for millions of years, during a major geologic era known as the Mesozoic. Fossils, scientific discoveries and tireless research efforts have gradually unveiled the mesmerizing tapestry of the dinosaur timeline.

    • Sean Mowbray
  4. Aug 19, 2014 · Sixty-six million years ago, a 10-km-wide slab of space rock slammed into the Earth, unleashing the force of thousands of nuclear bombs and triggering tsunamis, wildfires, earthquakes and all...

  5. Dec 13, 2021 · Sixty-six million years ago, a mountain-size asteroid slammed into Earth just off the coast of Mexico's Yucatán Peninsula, dooming the dinosaurs and leading to their extinction. The collision...

  6. Jun 1, 2022 · This fossil mammal, Ectoconus, was a revolutionary. It lived a mere 380,000 years after the worst day in Earth history, when a six-mile-wide asteroid ended the Age of Dinosaurs in fire and fury...

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  8. Jul 23, 2019 · How much did our ancestors in Mesopotamia, Asia, the Americas, Africa, or Polynesia accomplish in astronomy that we know nothing about? So did the dinosaurs explore space? Did they do astronomy? Did they create their own version of the Antikythera? Of course they didn’t.

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