Since the 1980s, scientists have believed that the main culprit for the dinosaur extinction was an asteroid. It came from the far reaches of the solar system, and was the size of Mount Everest.

Don't miss Earth, a story 4.5 billion years in the making.

Find out where to watch https://www.bbcearth.com/shows/earth

Best of Earth Science: http://bit.ly/EarthLabOriginals
Best of BBC Earth: http://bit.ly/TheBestOfBBCEarthVideos

Earth (2023)
Discover the astonishing fourbillionyear story of the place we call home, told over five dramatic episodes. This revealing biography of Earth explores the planet's most epic moments. From the first raindrops that turned it into a water world to the arrival of its most incredible inhabitants, us. But humans take a back seat in this narrative. Instead, Earth is placed centre stage. We see what happened to our world before we even crawled from the mud – including massive bombardments from space, extreme changes in climate and the collision of whole continents. The series uses the trademark dramatic storytelling techniques of The Planets to bring this unique story of creation to life.

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