Hello, welcome along. It's a brand new episode of the Fun Kids Science Weekly. You've stumbled upon the smartest show in the history of anything that's gone into your ears.

My name's Dan. This is the place where we tour around the universe. We look at all those science secrets that are lurking nearby.

This week we'll hear about one of the most famous historical sites in the world, Stonehenge, and why experts have been looking at what the people who built it might have eaten.

We looked at 19 copper lights, so 19 bits of preserved poo, and a quarter of them contain the eggs of intestinal parasitic worms.

And we did some special tests on those bits of poo to work out where they came from. One of the ways we helped to digest food is...

Also we head up to Deep Space High, you know it's the smartest school in the solar system, and we'll have a look at things that have crashed into the earth.

50,000 years ago a giant fireball would have streaked across the North American sky.

It was travelling at 26,000 miles an hour and hit the earth with the power of two and a half thousand tons of high explosives.

And I've got your questions to answer this week. They are on Pangaea, the supercontinent, and why you sweat.

It's coming up in a brand new episode of the Fun Kids Science Weekly.

Let's kick things off this week with your science in the news.

The world's biggest plant has been found off the coast of Australia. It's roughly three times the size of Manhattan in New York City, and it's sea grass.

It's a bit of sea grass under water. Now it's one large plant. That's what's amazing. Not loads of different ones.

One large plant is the size of 22,000 football fields. It's 77 square miles, and it's thought to have spread from a single seed four and a half thousand years ago.

Also a prehistoric food fights might have spelled the end for the megalodon. It's the largest shark that ever lived over three million years ago.

It was a menace to the sea and experts think that they used to eat whales. The problem is...

They'd eaten most of the whales. There wasn't a lot of food left for them, and other creatures wanted that food too.

And ashamed for the megalodon, they lost that battle, and now they're extinct.

And finally, robots are being used in a UK hospital because there's a huge waiting list and a patient backlog.

So the robots are taking on some work. They're helping out with the surgery. All surgeries to do with bladders and the heart.

Now, they're very small these robots because they're so small. They're very precise. They're clean. There's very little risk involved.

But still, they are being watched by experts all the time.

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