It's time for another trip around the solar system on the BIGGER and BETTER Science Weekly! 

This episode of the Fun Kids Science Weekly we continue our bigger and better podcast where we put YOUR questions to our team of experts, have scientists battle it out for which science is the best & learn all about why grey squirrels on the run is so dangerous for their red counterparts?

Dan starts with the latest science news, where we learn about the UK's latest astronaut, why NASA's plan to bring Mars' rocks down to earth has hit a snag & Dr Craig Shuttleworth from Bangor University explains why grey squirrels are the talk of the town after their recent escapades in Wales.

Then we delve into your questions where Dan answers Amelia's question on how old is the world's oldest tree and we pose Zoe's question on why can some animals only eat vegetables or meat when humans can eat both to Dr Carlo Meloro from Liverpool John Moores University

Dangerous Dan continues and we learn all about the Strangling Fig and why it's a tree's worst enemy around the globe.

The Battle of the Sciences continues where Dan chats to Aoife Morrin from Dublin City University about why Analytical Chemistry is the best.

What do we learn about?

- Rosemary Coogan, The UK's latest astronaut

- Why NASA's plans to bring back rocks from Mars is on hold?

- Why grey squirrels are so dangerous to red ones?

- Why some animals only eat meat or vegetables?

- Is Analytical Chemistry the best type of science?

All on this week's episode of Science Weekly!