28/10/2016 Newsround

It's 8:17 this Friday morning and you're watching

Coming up: How do you turn back the clock at Big Ben?

And how you get rid of waste on the International Space Station!

First, world leaders have agreed to protect a massive area

of water off Antarctica - home to the South Pole.

The Ross Sea has penguins, whales and seals, and is about six times

This new deal means that there can't be any commercial fishing

there for the next 35 years, and makes it the largest marine

It's hoped it'll help to protect wildlife that live there,

Yes, it's about the environment but most of all it is about justice,

and ensuring that we look after the environment

There seems to be something fundamentally wrong about us

destroying the ocean so our children and grandchildren

This is what was supposed to happen when the Schiaparelli lander

reached Mars last week, but things didn't go to plan.

The parachute and rockets designed to slow it down didn't work

Now new pictures are giving scientists more clues

These images show the remains of the capsule in a crater,

surrounded by a dark patch, which is thought to be

Well, one mission that did go to plan is Tim Peake's six-month

stay on the International Space Station.

The British astronaut has been touring the country meeting children

since coming back to Earth and he also caught up

with Jenny to answer some of your burning questions.

Oliver is seven and wants to know what you like to eat in space

Eating in space is strange because there is no convection

Some of the food tastes bland, so you would spice it up.

On Earth, why is the sky blue but in space it is black?

We always draw the sun as yellow, because it appears yellow to us

It is the whitest light you will ever see.

When the sun's light comes into our atmosphere it scatters

all around and it is the scattering of the light,

that is what makes it appear blue, and up in space it is just black

because there is no atmosphere so the sun is not passing

How did you get rid of the waste from the ship?

We don't want to resupply with anything, so we recycle

So today's coffee was yesterday's pee.

For the stuff that we can't recycle, that gets put into a blue garbage

bag you saw and it burns up in the atmosphere, so when you look

The clocks go back an hour this Sunday morning at 2am meaning, yes,

But while changing any clocks around your house might be a pretty

easy and simple job, it's a huge task for the team

Here's BBC reporter Tim Muffett to explain how they do it.

The clocks go back this weekend, but spare a thought for the staff at the

palaces of Westminster where the House of Commons and House of Lords.

2000 clocks need turning back, but this is the most famous. I'm in the

control room of the building you probably know as Big Ben, but that

is actually the name of the bell at the top of the Elizabeth Tower. This

the Victorian machinery that works the clock. You are part of the team

that will stop the clock over the weekend. How will it work? On

Saturday night, we will come here and stop the ticking of the clock.

There will be no bells or quarter bells, nothing. We switch the lights

of outside so no one knows what is going on and then we will move the

hands quickly to midnight, and what would be the new midnight, then we

will turn the hands back on with no bells and we will keep on going

round until we have the time right. And at two a.m., the official time

change, we will switch the lights back on and we will be back in

Greenwich meantime. Thank you so much. Whatever you do, don't forget

to turn your clocks and watches back, although smartphones sometimes

do it themselves, there is still a real art to this, as Ian has been

telling us. Now this Sumatran orangutan may not

be as old as Big Ben, but she's been named as the oldest

one on the planet! Puan lives in Perth Zoo

in Australia, where keepers studied loads of records to work out that

she's 60 years old. Primates like her usually

live to the age of 50, but the zoo says she's

doing well for her age. She's in very good condition

and she looks incredible She has got a bit cranky in her

old age, that might be the word, but everyone is entitled

to have a bad day. She definitely deserves a lot

of respect and she gets If her food doesn't come quickly

enough she stamps her feet and gives us this little war dance,

but she's easy to work with. at Chester Zoo featuring loads

of pumpkins, of course. Bears, black panthers and meerkats

have all been joining in the spooky spirit,

ahead of the main day on Monday. And we want your pumpkin pics -

go online now to send them