Ahoi, explorer.

Welcome along to the grandest adventure of the week.

It's time to search the universe for the best secrets in a brand new Fun Kids Science Weekly.

My name's Dan this week.

We've got very funny stuff.

We know that humans can laugh, but are we it? What about chimps, rats and even dogs?

If we thought about maybe a rat laughing and we know that rats can laugh, that would be actually a much more high-pitched sound, something that we wouldn't hear just as we would hear each other laugh, for example.

In Dangerous, Dan, we'll dive to the very bottom of the ocean

and we'll uncover the secret to staying young.

So the secrets of be a good older adult is be a younger active person.

So going out, doing sport, be physically active, but also mentally

active. It's all the way in a brand new Fun Kids Science Weekly. Shall we start with your

science in the news? All right then, killer whales have been spotted giving each other massages.

Using drones, scientists have filmed the creatures in the North Pacific Ocean,

using kelp to give each other a scratch.

They bite off the kelp, which is like a seaweed shaped in a tube,

then they put it on another orca's back, then they roll against each

other to massage both of their backs at the same time. Experts think that it may have a health or a

hygiene function and that it helps the orcas make friends. Well, they are a type of whale. We know

that they are geniuses, so it's not a massive surprise that they socialise and they try

and stay clean and relaxed, just like you and me. Also, a powerful new telescope in Chile

has unveiled its first pictures showing off how it can peer into the dark depths of the universe.

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