Chris Taylor wonders how astronauts can weigh things in space. Marika Ottman asks Michael Foale, a former NASA Astronaut and Commander of the International Space Station, to weigh in and assess the gravity of the situation... Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Why do humans get bored?

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...