14/04/2017 Newsround

Hi, you're live with Newsround on CBBC for the next five minutes.

why this river's getting blown up in China.

And all the Doctor Who goss from the brand-new companion.

The first official photo of the new Bake-Off

fam has been released. Bless 'em - all holding cupcakes.

One of these guys might be familiar, but who are the others?

Let's start with the one you do know, Paul Hollywood.

He is the only one left from the original line-up.

I wonder if he will still be the mean judge.

She has been a judge on another food show,

And she has a rescue mongrel called Meg, and a cat called

Taking over the presenting from Mel and Sue are Sandi and Noel.

Sandi Toksvig is a comedian, and she hosts

quiz shows like Fifteen To One and QI.

Noel Fielding is also a funny guy, and has starred in several comedy

He played Ed Banger in the Horrid Henry movie.

All we need now are some contestants, a big

fat tent, and some extraordinary baking disasters.

Another huge TV show is about to make a return.

Yes, the latest series of Doctor Who starts tomorrow.

There's a new companion for the Doctor - Bill Potts.

Martin's been to meet the actress who plays her, Pearl Mackie.

Something's coming, Bill, and I have the feeling that we are going

Give us a little bit of an idea about the character,

Bill, and what the audience can expect from you, the new assistant.

Bill, she's great, man, she's really cool.

She is very normal, much like somebody you bump

She has a very direct way of looking at things, and

she asks the Doctor a lot of questions that have not been asked

Why do they keep saying, "exterminate"?

Wouldn't it be quicker to just say, "kill"?

What was it like, going into the TARDIS for the first time.

It is genuinely bigger on the inside.

There are so many things to play with, it is great.

If there are any shots of me in the background playing with

things, that is genuinely me playing with things in the background,

What can Doctor Who fans look forward to in

Oh, we have got some epic adventures to be had!

They go to some amazing places, with some epic sets, and some of the

Did you get scared when you saw any of the monsters

Because I think, for a children's audience, I get

Some towards the middle and the end of the series that are

There are some that, you know, you are in the

scene, and they appear, and you are like, "Oh!",

which is kind of good, because

that is what your character is supposed to do!

So, is it true that the Doctor will be degenerating at the

Yes, yes, he is regenerating in the Christmas Special.

I just feel happy that I got to work with Peter, you know.

I think his Doctor is wonderful, and he is such

a brilliant actor and such a lovely guy to work with, I just feel really

lucky that I got cast in this season.

Next, to some real adventures in space and time.

This moon circling the planet Saturn could be the best

place to find alien life, according to Nasa.

A spacecraft has been looking at demon, which has an ocean under its

icy surface. It has studied the jets of water blasting out, and found

that the contained most of the ingredients needed to support life

forms. Finally, have a watch of these jets

of water, back on Earth. Tonnes of explosives tore up

a frozen river in China. Parts of it had iced over

because of cold weather. Engineers decided to break

up the ice, sending it flying, so that all of it

wouldn't melt in one place and possibly cause

flooding. Newsround's back tomorrow morning

with Martin at 8:55.