It was one of the most unlikely events in history. But how did fish become land animals?
Can science and engineering tackle annoying, ear-damaging sounds?
Many people believe in an afterlife. Does science have any proof it exists?
Could parasites help give our immune systems a boost and help us fight disease?
Where did our climate last have this much carbon dioxide?
Human organs are in short supply. But what if you could grow news ones in the lab?
Is it fair to kill invasive species which humans have introduced?
Just one per cent of vehicles are powered by electricity
Nuclear weapons and mega asteroids: what would the aftermath look like?
Your questions about the super abilities of insects
Could trees be even better at tackling air pollution than previously thought?
Your questions about life, Earth & the universe tackled by a panel of experts.
Can we collect electricity from lightning?
Are humans the only species that murder each other? We head to the rainforest to find out
Why do we sound so different from each other – even when we speak the same language?
How much of the justice system could be replaced by technology?
We look at how nicotine tricks the brain into thinking tobacco’s good for us.
Does Time really exist or is it all in our heads?
Do we think in words, images, or abstract concepts?
This week we hack the secret plant communication network “The Wood Wide Web”.