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66 million years ago, an asteroid as big as Mount Everest was headed on a deadly collision course with Earth.
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The impact was so devastating that it wiped out the most gigantic, deadliest reptiles to ever roam our planet.
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But the dinosaurs didn't just die from one big boom, no, they faced a slow, agonizing end.
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How did this event cause the biggest tsunami ever?
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And what exactly happened after the big reptiles were gone?
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Hold on tight, we're taking you on the most epic and deadly trip of your life.
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This dinosaur ending asteroid is terrifying.
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Not only was it about 10 kilometers in diameter.
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But it also traveled incredibly fast.
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Between 10 and 30 kilometers per second.
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At this point, it was a blazing fireball.
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As it hurtled down to Earth, the air in front of it was compressing and heating up to unimaginably hot temperatures.
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Just before the impact, the asteroid could have been as hot as the surface of the sun.
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Once it entered our atmosphere, it only took this massive space rock a few seconds to reach Earth's surface.
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And alter the course of life forever.
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As the asteroid slammed into Earth off the coast of where Mexico is now.
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It sent huge amounts of debris up into the air.
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The shocking blast wave killed everything in its way.
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And from here.
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It was only getting worse.
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Yeah, 66 million years ago, Earth was going through some rough times.
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Now, right now, our planet's not facing a giant asteroid.
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But we are facing increasingly severe environmental crises.
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If you think it's time to fix our planet, well, stick around for a fantastic video recommendation.
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From our friends at Planet Wild.
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You don't want to miss it.
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This powerful blast ejected bits of the Earth's surface into the atmosphere.
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And minutes later, scorching hot pieces of glass and rock rained back down.
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Some of the debris reacted with the atmosphere.
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Causing acid rain that would last for years.
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The land was burning.
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The fires caused by this devastating impact spread across the continent like literal wildfire.
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Killing more and more life along the way.
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And then, just when you thought the apocalyptic scenario couldn't get any more intense.
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Well, it did.
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The impact of the asteroid hitting Earth was so powerful that it sent shockwaves through the planet.
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And all that energy had to go somewhere.
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Cue the mega tsunami.
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A wall of water over 10 meters high raced across the ocean.
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Yeah, this wasn't your regular tsunami.
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It was a staggering 30,000 times more powerful than anything you see today.
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As this monstrous wave spread across the North Atlantic and South Pacific, coastlines didn't stand a chance.
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The wave hit with such force that it destroyed and reshaped the continent.
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If you were there to witness this apocalyptic destruction, well, you wouldn't survive any of it.
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But some dinosaurs did.
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Yeah, the ones further away from ground zero weren't immediately obliterated by the impact.
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They weren't incinerated by the resulting infernos, and they managed to avoid being swept away by the mega tsunami.
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But still, their fate was sealed.
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As the dust began to settle, it was the start of a nuclear winter.
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Even though it wasn't nuclear weapons that caused it, the effect was the same.
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The massive amount of debris in the air blocked the sunlight for months, maybe even years.
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Earth suddenly became a cold, dark place.
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And the dinos weren't ready for it.
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As temperatures plummeted and fires released enormous amounts of greenhouse gases, the climate changed dramatically.
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Plants weren't able to perform photosynthesis and most of them started to die out.
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This disrupted the food chain and starved many of the animals that survived the impact.
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And remember the acid rain, it lasted for several years.
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Causing more devastation to the ecosystem.
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The oceans became too acidic for marine life.
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Most ocean species didn't have the time to adapt to such a drastic change.
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These prolonged harsh conditions, together with the initial blast, pushed about 75% of Earth's life to extinction.
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The good news is, is that this included the horrifying T-Rex.
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Yeah, as much as I feel bad for this guy, I'm happy he's not running around today.
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When the last of the dinosaurs breathed their last breath.
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Earth became an empty, devastated place.
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Cold and acidic.
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So when did things get back to normal?
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Yeah, well, here's the thing.
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They didn't.
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Not dinosaur era normal, anyway.
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Earth didn't rebuild after that.
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It reinvented itself.
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1,000 years later, the planet was recovering from the post-apocalyptic winter.
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It was still cold and food was still scarce.
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But life was ready to make a comeback.
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In this new wild world.
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A few furry little critters were sprinting around.
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Among the first plants to reappear after the impact were ferns.
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They really hit it off well after the disaster.
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100,000 years later.
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Earth began to get a little more lively.
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Creatures about the size of raccoons were repopulating the continents.
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And the oceans were once again teeming with life.
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Fast forward about 10 million years and Earth had finally restored its biodiversity.
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Only it wasn't the same Earth as it used to be.
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Now, it was the age of mammals.
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Yeah, after the dinosaurs checked out.
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Mammals were on fire.
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Yeah, not literally, of course.
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Mammals, together with birds and flowering plants were rocking the planet.
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Yeah, Earth never got back to its old self.
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After the last dinosaur died, it took our planet millions of years to bounce back in a new way.
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But don't get me wrong.
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This world was still pretty terrifying.
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It had beasts like Paraceratherium roaming the land and Megalodons reigning terror in the oceans.
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Yeah, it's really for the best that most of these creatures aren't around these days.
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You wouldn't want to face a Meg when you're out there swimming in the ocean.
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Even without bloodthirsty Megs sneaking around the oceans, today's Earth and its natural environments face a lot of problems.
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But it's not game over for our planet just yet.
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Check out this new YouTube channel, Planet Wild.
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These guys are like real life Avengers, going out there to protect our planet.
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Only instead of fighting other worldly threats, they stay on this planet and get their hands dirty, rewilding it and fixing the damage we've done to our home.
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Every month they release a video, and these ones here, they clean up the ocean from deep sea waste.
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Or transform a dying forest into a beautiful, strong ecosystem.
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It's an absolutely inspiring journey.
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One that'll make you feel like you want to change the world.
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Big shout out to Planet Wild for doing amazing work and for encouraging all of us to do better.
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Don't wait, check them out.
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Let's save the planet and not go extinct like the dinosaurs.
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