25/11/2015 Newsround

Good morning, Ayshah here with your mid-week stories this Wednesday.

Coming up:

Atchoo!

Scientists get up, close and personal with sneezing, and...

A step closer to space tourism?

A new rocket has a successful launch.

First up, to the Champions League, and Chelsea moved joint top

of Group G, after a comfortable 4-0 win at Maccabi Tel Aviv.

Arsenal's hopes in the competition are still alive

after their 3-0 victory against Dinamo Zagreb at the Emirates.

And Arsene Wenger thinks his side have a good chance.

What we want is to come out of the game tonight with

a chance to qualify and we needed to do the job and

Bayern Munich needed to do the job.

Both did it well and it gives us a chance.

How big the chance is, I don't know, but I believe we can do it.

There will be more Champions League action tonight, as well, with both

Manchester teams in action.

City may have qualified already, but are playing Juventus tonight.

United will be hoping to qualify for the next step of the competition

by beating PSV Eindhoven at home.

Animal news now, and scientists say over half of the world's primates

are on the brink of extinction.

Species of apes, lemurs and monkeys are some

of the creatures under threat.

Experts say destruction of their homes, particularly the burning and

clearing of tropical forests, as well as the hunting of the animals

for food and the illegal wildlife trade, are responsible

for the drop in monkey numbers.

Now, if you're eating your breakfast, look away -

because we're about to show you a giant sneeze in slow motion.

Scientists in the US have used high-speed video

to discover exactly how snot breaks into drops after it's ejected

from our mouths during a sneeze.

They discovered that mucus and saliva moves in sheets, bursts,

bags and beaded strings before becoming droplets.

It's hoped the research will help experts learn more

about how sneezing spreads germs.

With less than year to go until the Olympics games,

many sports are close to choosing their teams to take to Rio.

And one person hoping to make it is 16-year-old Rebekah Tiler.

Today she will compete as the youngest member of the GB team

in the Senior World Weightlifting Championships in the USA.

Rebekah started the sport when she was just 12 years old,

and and we sent BBC Olympic sport reporter Nick Hope to meet her.

Rebekah Tiler has an amazing talent.

She's just 16, but can lift over 120 kilograms above her head.

That's twice her own body weight.

I've been doing the sport for about four years now.

I actually started off as a sprinter when I was 12.

I went to the perform centre and I was lifting more than most

of the guys.

It's crazy.

A month later, I started doing it.

Everybody thinks it's a body-building sport.

You know, you get big muscles and you are

hairy and everything like men and stuff, but it's nothing like that.

They are all just normal girls.

Rebekah holds 30 British records, and her typical day involves

training and studying for college - something she is pleased to see

more girls trying themselves.

I think there's a lot more girls getting involved

in the sport now, which is really good, and that's what I wanted to do

- inspire more kids and girls to get in, because it's a great sport.

Houston in the USA is where Rebekah will make her debut at the

World Championships as a senior weightlifter.

And as an added bonus, she'll also be up against one of her idols -

Commonwealth champion Zoe Smith.

The first time I saw Zoe was at London 2012, and I was looking up

to her thinking, I could be like her if I trained hard.

So I am now, which is cool.

And you are going to be competing against her.

Which is really good, yes, that's going to be a good showdown.

She's a fantastic athlete, I can't knock her at all.

She has obviously been making huge gains recently, so it will be

a really, really good competition.

To be there and experience it is just going to be so cool.

Just really excited, can't wait to get on the platform

and show them how I lift.

Next, a new rocket designed to carry tourists into space has

launched successfully in America.

The New Shepard rocket took off from west Texas on Monday with no-one

aboard and landed safely again.

It's been made to carry up to six people into earths upper

atmosphere where they will be able to experience weightlessness.

The rocket is designed to take off and land standing up,

so it can used more than once.

Australia has started using drones with cameras to track sharks

on beaches.

The drones will send live pictures to a control centre

so the animals can be tracked.

They are being used alongside barriers in the sea,

and helicopters, after a number of attacks over the last year.

That's all from me, I'll be back in about half an hour.