21/01/2017 Newsround

Good afternoon, you lot, Martin here with all

Coming up on Newsround: The crack in the ice causing

And Johanna Konta beats the tennis world number one

First, America is waking up today to a new president - Donald Trump.

The billionaire businessman and former reality TV star has

taken charge of the US, after a huge inauguration

Leah was there in the capital, Washington.

This is the moment Donald Trump officially became the 45th president

I, Donald John Trump, do solemnly swear that

I will faithfully execute the office of President of the United States.

In his speech afterwards he told the crowds that he

I will fight for you with every breath in my body and I will never,

The ceremony was also timed to say goodbye to outgoing

President Barack Obama who flew out in a helicopter.

Thousands of people came to watch Trump's inauguration.

Since he's going to be running our country, I want to help

It was pretty exciting because this is the moment

He can't really do anything too terrible so I'm interested

It's an historical moment so I'm happy to be here.

These people are protesting outside his new hotel in Washington, DC.

They are unhappy and they don't think he's the right

There are more protests expected here, too.

I really have no idea how he will run this country.

So far it doesn't seem like he's been doing the best kind of job.

I hope that he doesn't, like, pick fights with other

Try not to mess America up that much in four years.

And now, for the first time, the new president of America,

Mr Donald Trump, is here along the parade route greeting people

He's our new President, I can't do anything about it so...

I feel like he's a great businessman and will do a great

I think he's going to do a lot of things.

So, as Donald Trump wakes up to his first morning in the White House,

the country is waiting to see if he can live up to his promises.

And on his first day as President, Donald Trump will be waking up

to thousands of women marching as part of a big campaign to raise

awareness for gender equality and women's rights.

This is because protestors think their rights could be under

threat from the new president after rude comments he has made

Marches are taking place in 32 different countries

with the biggest in Washington DC, the capital of America.

If you want any more info on the inauguration or Donald Trump,

then head online for Leah's reports from the US.

A wee bit of tennis news and Britain's Johanna Konta

is through to the fourth round of the Australian Open.

She beat former world number one Caroline Wozniacki

Johanna looked very comfortable during the match.

Beating her opponent 6-3 6-1 in 75 minutes.

Making it eight victories in a row, it's safe to say she's on a roll

after winning the warm up title in Sydney before this tournament.

Russia's Ekaterina Makarova will be next in line

Next, to the coldest place on planet Earth, Antarctica.

This huge crack has developed in the ice there and has caused some

British scientists who are based nearby, to move their research labs,

It goes on for miles. This huge cracks deep into the ice has been

captured by a droning on task. The crackers in an area called the

floating brunt ice shelf, just ten miles from the crack, British

scientists are based at a station. The station is made up of big blue

had is with a big red pod in the middle. They have made the decision

to move their base because they don't know what will happen to the

ice shelf in the next few months. Luckily, the pods are designed to

move, with the likes fitted onto big skis. Next few months are important

because the Antarctic winter will be starting and the area will be pitch

black months. It also means it would be difficult to evacuate people from

the area in the winter conditions. Temperatures get as low as -55

Celsius. We have taken a prudent decision but in light of this new

crack it will be best and safest to close the station in a controlled

way as to bring our team home, because there are safety is

paramount to us. The survey also say that cracks in ice shelves aren't

unusual, but this new crack is growing. They plan to go back to the

area in November to carry on their work when it is summertime again

there. Until then, they will monitor the crack.