How do ancestry DNA tests work?
A new series has been sighted on the horizon. Hannah and Adam bring you more news.
Why do we all have different pain thresholds?
Is anything really random?
How fast can a human run?
Are intelligent aliens out there?
How do we look for alien life, and what are we expecting to find?
Why do birds sing? And why are some songs so complex?
How do I win the lottery?
Why do we get déjà vu?