Dr Karl discusses how the human body uses nitrogen, and the science of vision.

Join Chris Smith and the team as they debate whether humans should go to Mars, and who would own it if we made it to the Red Planet.

This week Dr Karl answers your questions on red meat, cancer plus human cells

This week on 5 Live Science we find out about a development for patients in a vegitative state, a new method for coating steel, plus why some monkeys howl louder than others.

Dr Karl answers listeners' questions about the weird and wonderful world of science.

Join Dr Chris Smith and the team for '5 live Science'

Dr Karl answers listeners' questions about the weird and wonderful world of science.

Join Chris Smith and the team as they launch Mars Month. Is it possible to send someone to the red planet? And what does it take to be an astronaut?

Dr Karl answers listeners' questions about the weird and wonderful world of science.

Chris Smith and the team as they discover what colour extinct animals were. Plus the answers to the science questions you have been sending in.