• Comets started agricultural civilization

    Comets started agricultural civilization
    US experts have linked a collision event with the celestial celestial body in Canada about 12,900 years ago with global climate change, wiping out large mammals on the Earth's
  • Comet: Assassin kills the dinosaurs

    Comet: Assassin kills the dinosaurs
    American scientists announced the study of space rocks that collided with Earth 65 million years ago, causing the extinction of dinosaurs as a comet, rather than an asteroid as