06/04/2017 Newsround

It's 8.15 on Thursday, 6th April.

You're watching Newsround with me, Jenny.

We're live for the next six minutes.

Coming up:

Why Pepsi have pulled their latest advert.

And the spacecraft on its final mission to discover more

about Saturn's rings.

First, the US President, Donald Trump, is among the world

leaders who have been reacting in shock this week after chemical

weapons were apparently used in the war in Syria.

At least 72 people died on Monday.

But what exactly are chemical weapons, and why do

they cause such outrage?

Chemical weapons are toxic chemicals that are used to hurt - or kill.

They were used in World War One more than 100 years ago.

They caused such horror that in 1925, countries agreed

to an international ban on using them in war.

Even in war, there are rules that countries agree to -

some of those are about the types of weapons that can be used.

20 years ago, there was an agreement called

the Chemical Weapons Convention.

192 nations, including Syria, have signed it,

agreeing to destroy all their chemical weapons.

That's why there's a lot of anger about the suspected attack

in a country that's been at war for more than six years.

For a full explanation of what's going on in Syria,

go online now for our guide to the conflict there.

In other news, Pepsi have pulled their latest advert

after lots of negative comments on social media.

Model Kendall Jenner stars in the ad, where a protest

is taking place in America.

She walks up to a police officer, hands him a can of Pepsi and then

everyone cheers and hugs.

People have complained because they say it makes light

of recent US protests against how police

treat black people.

Pepsi have apologised, saying they "clearly missed the mark".

After their shock weekend defeat to Crystal Palace,

Premier League leaders Chelsea are back on track

in the title race.

They held off Manchester City with a 2-1 win last night.

Eden Hazard gave Chelsea the early lead before

Sergio Aguero equalised for City with this goal.

But Chelsea were back in front before half-time,

thanks again to Eden Hazard.

Big win.

It's always difficult to play against Manchester City.

When they start to play, you need to defend well, and we did.

We scored two goals today, so we are happy to stay top

of the league with seven points.

Well, if you're not a fan of that type of sport,

maybe you'd like to give eSports a try.

Loads of students have been taking part in a schools Rocket League

competition in London and our new reporter

Whitney went to meet them.

On sports day, you run 100 metres, you try your best at the egg

and spoon race or hit the rounders ball as far as possible.

But should your school have an eSports team?

I'm here at an eSports tournament in London,

schools have just started.

This is Team R3, who've got through to the final.

How different is this, Jonathan, compared to football or tennis?

It's very different because we're in cars

and we're knocking a ball around.

So it's fun to play and not having lessons and normal stuff to do.

And communication is key. I've seen you guys play.

How do you motivate each other?

We say, "Let's hope we don't lose this game".

Do you think eSports should be included in school sports day?

Yeah, I think it's quite good because people that can't run

or are not good at it can be good computer games.

I was bad at every single sport, including swimming.

I was the worst.

I'm sat here with a professional eSports player, Ryan,

also known as DoomZ.

Which one are we going for today?

DoomZ.

Do you think eSports should be included in school sports days?

I think that would be quite fun.

Having as much variety as possible is always a great idea.

In sports and eSports, your mental game is extremely important.

So you have to be on top form.

You have to make sure you're eating right and you're healthy.

I think that's what's similar.

It's just the physical aspect that's different.

I'm going.

Right, I don't know how to play this.

I think this needs to be left to the professionals,

because I have no idea of what I'm doing.

Finally - a spacecraft that's been orbiting around the planet Saturn

for the past 13 years is about to start the final

part of its mission.

Watch this.

Meet Cassini.

It's been circling Saturn since 2004 after a seven year

journey through the solar system.

Its mission?

To find out more about the planet and its family of rings and moons.

But not for much longer.

It's going to be put out of action because it's

running out of fuel, but before that, it's got a pretty

important job to do.

For the next five months, the spacecraft will dive

through the 2,400-kilometer gap between Saturn and its rings, as

part of the mission's grand finale.

But that's not all.

Oh, no.

This will happen not once, but 22 times.

On the final orbit, Cassini will plunge into Saturn,

fighting to keep its antennae pointed at Earth as it

sends its goodbye message.

It's hoped the craft's final findings will help us understand

how giant planets form and grow over time.

Pretty good for a final outing.

That's all from me.

Newsround's back on CBBC this afternoon at 4:20 with Leah.

If you've got a good impression of a CBBC character or presenter,

send it into us.

Send a 20-second clip of your best impression and don't forget

to tell us who you're impersonating.

All you have to do is check out the "Guest Whom"