S1E3: Aliens | Brain Freeze

13: Earth and Space Special | Horrible Science

Rapping science teacher Matt Green becomes the first human being ever to visit Quark when he joins Pipette on her home planet ...

S1E1: Stars | Nina and the Neurons

When Emma from the Yorkshire Dales asks Nina to find out where stars go during the day, she needs help from Luke, the sight neuron, to fin...

S1E1: You Fell Into a Black Hole? | Hey You, What If?

Experience the most extraordinary ride in the universe - falling into a black hole.

S1E10: The Earth Was Flat? | Hey You, What If?

Find out why a flat Earth would feel very unflat indeed!

S1E13: The Sun | Brain Freeze

Knowles and McCork ask, when will the sun stop shining?

S1E14: You Could Live on the Moon? | Hey You, What If?

Some day people will live on the moon - find out just what they are in for.

S1E16: You Could Actually Reach for the Stars? | Hey You, What If?

Want to reach for the stars? It would be the journey of a lifetime - literally.

S1E18: The Earth Was Shaped Like a Doughnut? | Hey You, What If?

Would it be possible to live on an Earth shaped like a doughnut? You might be surprised!

S1E20: You Try to Catch a Falling Star? | Hey You, What If?

What happens if you try to catch a falling star? Spoiler alert - probably best not to try!

S1E3: You Could Take a Lift to Space? | Hey You, What If?

What would happen if there really was a lift that took you all the way up to space?

S1E4: Deep Ocean | Brain Freeze

Knowles and McCork ask, what is the deepest part of the ocean?

S1E5: You Could Go on Holiday to Mars? | Hey You, What If?

Experience the ultimate in long-distance travel - a holiday on Mars!

S1E8: The Earth Stopped Spinning? | Hey You, What If?

Find out why stopping the earth from spinning isn't such a good idea.

S1E9: The Moon Was Made of Cheese? | Hey You, What If?

Things don't quite go to plan when the moon turns into cheese.

S2E16: Space | Brain Freeze

Knowles and McCork ask the question 'What is a black hole?'

S2E2: Shooting Star | Brain Freeze

Knowles and McCork ask the question 'What is a shooting star?'

S3E10: Time Zone | Brain Freeze

In this time zone special, Knowles and McCork ask 'Why does the Earth spin on its axis?'

S3E12: Walk | Brain Freeze

McCork and Knowles ask 'How long would it take to walk the Earth?'

S3E4: Space Food | Brain Freeze

Knowles and McCork ask the question 'Could pineapples grow on the moon?'

S3E6: Salty | Brain Freeze

Live from the seaside, Knowles and McCork ask the question 'Why is the sea salty?'