29/07/2016 Newsround

Hi, everyone.

Leah here with your Friday Newsround.

First, Hillary Clinton has officially agreed to run for US

president for her political party, the Democrats.

She has made history by becoming the first woman ever to be nominated

for the White House job by a major party.

Hillary has promised to unite the country and improve

the lives of all Americans, if she beats rival Donald Trump in

the race to win November's election.

The person the American people choose, will make important

decisions about how the US is run and how it works

with other countries.

I accept your nomination for President of the United States.

CHEERING

Yes, the world is watching what we do.

Yes, America's destiny is ours to choose.

So let's be stronger together, my fellow Americans.

And you can find out more about Hillary Clinton

and the American Presidential election online.

We are exactly one week away from the official start

of the Rio Olympic Games in Brazil.

The event will see over 10,000 athletes from around 200 nations

come together to compete in 28 sports, including athletics,

swimming and even wrestling.

Team GB will be hoping to win loads of medals.

The BBC's Olympic reporter Nick Hope has given us insider info

on which British stars to watch out for.

Hi, Newsround.

Yes, we're just days away from the Rio Olympics,

an event so big it's called the greatest show on Earth.

Many of the athletes have already travelled to Brazil

to begin their final preparations so here are my top five

ones to watch in Rio.

Teenager Amber Hill started shooting when she was just ten.

She has her own special pink cartridges and hopes those

will help her become the first British woman to win an Olympic

shooting gold medal.

Adam Peaty is a swimming sensation.

He's won Commonwealth, European and World gold medals over

the last two years and is looking to complete his set

with an Olympic title.

Britain has some of the best taekwondo fighters on the planet

and Bianca Walkden is a major star.

She won World gold in 2015 and wants more success in Rio.

Ellie Downie only stepped up to senior gymnastic competitions

last year, but has already won several major titles and will be

bidding for both individual and team medals.

Finally, Katarina Johnson-Thompson, the heptathlete, competes

in a incredible seven events and is amongst the favourites

to secure gold, but she'll be up against her teammate,

defending champion Jess Ennis-Hill.

So all five athletes will be hoping to win big for Team GB and you'll be

able to catch the best of the action on the Newsround website

throughout the Olympics.

Now one of the largest ever dinosaur footprints has been found

in Bolivia in South America.

It's more than a metre across and is thought to have

belonged to a type of dinosaur called an Abelisaurus.

Amidst the dry and dusty hills of central Bolivia,

a remarkable discovery.

Hidden beneath rocks and boulders, a footprint preserved in time.

A footprint that's thought to be tens of millions of years

old and much larger than expected.

TRANSLATION: The abelisaurus were the great carnivores of the end

of the Cretaceous period in the southern hemisphere.

Footprints this large have never been reported.

Their normal size was around nine metres, large animals,

however the footprints we found were for an animal that easily

exceeds ten or even 12 metres.

The Abelisaurus was similar to the Tyrannosaurus Rex.

Both part of the Theropod group of dinosaurs.

Like the T-Rex it's believed to have lived in the late Cretaceous period,

somewhere around 60 to 80 million years ago.

Whereas its more famous cousin roamed around north America,

the abelisaurus could be found in south America.

And it was unlikely to be lonely.

In this area of Bolivia thousands of footprints have been discovered

and children are getting the chance to see replica dinosaurs.

80 million years ago they could have seen the real thing.

And last up, this might not be millions of years old but it's

still pretty amazing.

Lava from the Kilauea volcano in Hawaii started erupting two

months ago and has been moving on a six-mile journey

towards the coast since.

It's now reached the Pacific Ocean and this stunning video

shows the hot liquid rock falling off the cliffs.

Officials there say that the lava isn't putting any towns at risk.

That's all from me.

Newsround's back right here in about half an hour.

Bye!