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A Weighty Matter Part 2/2—Series 17
Is dark matter a fudge to fit existing theories to inexplicable observations?

A Weighty Matter Part 1—Series 17
How does gravity pull us? asks Emma

The Flying Clock and the Stopped Watch—Series 17
Do individuals perceive time differently? asks Joe from North Yorkshire

The Mosquito Conundrum—Series 17
What’s the point of mosquitoes? asks Cathy

The Scientific Exploration of Astrology—Series 17
Could there be something to astrology? asks Dan in Australia

The Noises That Make Us Cringe—Series 17
Why do some people find noises like a fork scraping a plate so terrible?

The Pizza Diet—Series 17
Can I make a pizza that contains my recommended daily intake of everything? asks Paul

The Good and Bad in Fungi—Series 17
"Why are some fungi helpful and others harmful?" asks Paul Glaister in Reading.

The Martian Mission—Series 17
What would it take for humans to live on Mars? Drs Rutherford and Fry investigate.

The Hamster Power Hypothesis—Series 17
How many hamsters on wheels would it take to power London?