06/08/2016 Newsround

It's Saturday, I'm Jenny and you're watching Newsround, live on CBBC.

You won't want to miss all this:

We've got everything you need

to know on the first day of Rio 2016.

And the latest on the cat fight kicking off at

the Prime Minister's house.

First, spectacular fireworks, a parade of nations from around

the world and the lighting of the famous torch.

We're talking about the 2016 Olympic Games opening ceremony.

Ricky was there, at the stadium in Rio to watch the magic happen.

Here we are inside the Maracana with the opening ceremony.

Thousands of people in here have just sang the

Brazilian national anthem and now we are expecting the show

to really begin.

The organisers of the show have used a really clever way

to show the story up by projecting these

fabulous images onto the floor.

It looks stunning.

It would not be an opening ceremony without fireworks.

I tell you what, Brazil has not disappointed.

And there we go, Team GB have just entered the stadium with

Andy Murray waving that flag.

We welcome you in Rio, the Olympic city.

So there you go,

the flame has been lit in the stadium.

The Games have officially begun.

I think this opening ceremony was all about having fun,

dancing and loads of colour.

But now the serious stuff begins, the sport.

Over the next two weeks, it's all going to be about

bronze, silver and gold.

Thanks, Ricky, looks incredible.

Well, it doesn't stop there, there's a full day of sporting action ahead.

Here's what's coming up.

Fresh from his victory in the Tour de France,

Chris Froome will take on Rio's cobbles and climbs

in the gruelling men's road race.

That is more than 250 kilometres.

Commonwealth Games champion Geraint Thomas is also a

strong medal contender.

He is aiming for Olympic gold too.

He is known as the bad boy of judo but after

a disappointing performance in London four years ago,

Ashley McKenzie is aiming to come back to Rio stronger than ever.

If you are allowed to stay up late tonight, watch out

for the first of Team GB's medal hopes in the swimming pool.

20-year-old James Guy came out of nowhere to clinch gold in the

200 metres in the World Championships last year.

In Rio, he will compete in the 400 metres freestyle.

And we want to know what event you are really

looking forward to?

Are you all about the athletics?

Tuning in for tennis?

Or mad about the marathon?

Get online and tell us what you're watching and why.

Carys has already emailed and she says she'll definitely be

watching the gymnastics because she's a gymnast

herself and she can use it to learn more skills.

Thanks, Carys.

Keep those coming in.

Next, a big row has been taking place on Downing Street,

where the Prime Minister lives, in London.

But this time it's not between the politicians,

but the cats who live there.

BBC political correspondent Chris Mason has been investigating.

MEOWING

Take a look at this.

Larry, the Prime Minister's cat and Palmerston, the

Foreign Secretary's cat, fighting.

BELL RINGS

Experts say it is all down to territory.

Larry sees Downing Street as his patch and

Palmerston is not welcome.

It's Larry the cat.

We are at the home PURR-litical reporting, the

home of the Prime Minister, Theresa May, and the home of Larry the cat.

This is Downing Street.

And now, there is another cat on the block.

This is Gladstone, the Treasury cat.

So a friend to join Larry patrolling the streets of power in Westminster

or another enemy?

With all this fighting, could a third pet prove

to be a CAT-astrophe?

Five million people in the UK have asthma, a condition which can

make it hard to breathe.

Most of them use inhalers to make them feel better,

but now scientists are working on a pill to treat it instead.

The team say their study shows 'massive promise'.

Although a lot of work still needs to be done, it's thought it could be

a step towards making new medicine.

I think it's important in lots of ways.

We have had really good treatments for asthma for many years

that are delivered through inhalers which are great.

But there is no doubt that lots of people with

asthma really don't like inhalers so to

have the opportunity of having a new treatment in a tablet

form is hugely exciting.

Now last up,

ever wondered what a singing robot sounds like?

Like this, apparently.

Weird.

Alter the robot has been programmed by scientists to mimic the way human

brains work so that it has complete control over its limb movements

and facial expressions.

It was made by a team in Japan.

Nice

Nice moves.

That's all from the team for now.

Newsround's back right here at 1.40pm.

Bye!