NASA asteroid WARNING: Why space rock could spark ‘COSMIC WINTER’ on Earth

“Such an asteroid has struck before.

“65 million years ago, it hit Mexico’s Yucatan Peninsula and the result was a cosmic winter and mass extinction.”

A cosmic winter follows the idea that an asteroid could wipe out all forms of life on Earth and plunge the planet into a cold, bitter darkness.

The programme went on to reveal how even a small asteroid can lead to shocking consequences.

The narrator added: “When the skies cleared, two-thirds of all species were gone, including the dinosaurs.

“In false colour, you can see the crater buried beneath forest and ocean.