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Jonathan, you're a hard worker.
A real wizard with a vacuum cleaner.
-But can I really trust you to hit your targets?
You seem to know about science and things,
but I'm looking for someone who can really fly.
I'm just not sure you're that person.
And then there's you, McCork.
Erratic, unpredictable, perhaps even a genius.
So I've come to my decision.
you are going to be fired!
..the floor manager!
Come on, everybody!
BOTH: It's time for...
Today we're asking - what is a shooting star?
Our solar system today is full of planets, moons, asteroids
and small worlds of dust and ice called comets.
Most comets have huge elliptical orbits,
but when they come near the sun, heat melts the ice
and they grow long tails of gas and dust.
But what do these comets have to do with shooting stars?
When the ice in a comet's trail melts,
it releases small chunks of rock and dust into space.
These and other small rocky particles hurtling through space
are known as meteoroids and when they enter the earth's atmosphere,
they're known as meteors.
So they're not really stars at all?
Don't forget, McCork! My office, 5pm!
Don't be late!
But we're live.
Oh, that is so unprofessional!
Go to ad break! Ad break now!
I'm really going to miss you, McCork.
So many memories.
Get off, McCork!
Aw, it's just not going to be the same without him.
What are you talking about?
So if they're not shooting stars, then what are they?
Entering the Earth's atmosphere at speeds of 15km per second,
meteors heat up rapidly due to friction with the air.
As they burn up, they glow brightly, creating the streak of light
we see as shooting stars.
At certain times of the year, when Earth passes through a stream
of dust left by a passing comet, we can see meteor showers.
Spectacular events with up to 50 shooting stars per minute!
50 per minute? That's an awful lot of stars.
Aw, none of them are as bright as you, Professor.
Ah, stop it! You're only embarrassing me now!
See you around, everyone!
And we're clear!
Looks like I'm getting fired now, right?
From a cannon!
Welcome, everybody, to my annual charity
Fire A Colleague From A Cannon challenge!
This is absolutely bonkers!
Ready as I'll ever be, Mrs Hucklebuck!
Here we go!
Three, two, one!
I think I might have got the calculations a bit wrong there.
Oh, it's going to be a long year!
Ah, look, there's the moon!
It looks brilliant from here.
Mars is looking nice.
This is brilliant!
I wish I could get fired every day.