Hello, explorer. Welcome to another quick spin around the solar system. This is the only place you will learn all those strange secrets hidden away. It's time for Science Quest.

Yes, my name is Dan. This is Science Quest because that's what we do. We are on a quest or on an adventure to find all the brilliant sciences.

Everything smart, hidden lurking, squirreled away through the universe. But you and me will find it.

My name's Dan. It's all about amazing things, strange deadly beasts and your questions.

This week we're investigating the

story of our planet, finding out why Earth is called Earth. We have Earth as the planet,

so planet Earth. Of course, Earth is also the ground, and why do we use it too? And it partly has

to do with how people came up with words for it to some extent.

When they were first talking about it, what did you see around you?

You had the Earth all around you.

People didn't necessarily know that Earth was a globe, that it was a planet.

Also, you can hear about one creature nicknamed the human fish,

and we're heading deep beneath the surface to explore geoscience and what's under our feet.

How did life originate on our planet? We don't know. But what we do know is there was a period where there wasn't life, and then there was.

And what was present before there was a period where there wasn't life, and then there was.

And what was present before there was life was minerals and rocks.

It's all on the way in a brand new science quest.

Let's start with your science in the news.

And this is brilliant.

Scientists have found Norwegian polar bears a fatter than ever before, and that's a good sign. Researchers have measured

and weighed 770 adult polar bears in Svalbard, an island off the coast of Sweden in the Arctic

circle. They've done this between 1992 and 2019, so 27 years, and they found that they've become

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