Do penises really get bigger in the summer?

Having beautiful white teeth of course depends on good oral hygiene to a degree. But brushing and flossing alone aren’t the only factors. The structural integrity of our tooth enamel is actually determined by genetics, meaning some of us are more likely to experience decay than o ...  Show more

If you are a pet owner you know how hard it can be to leave your furry friend at home when you go to work. You may worry about their wellbeing, feel guilty for not spending enough time with them or miss their companionship. According to a BBC article, more than 3 million people i ...  Show more

Andrea Sella, Professor of Inorganic Chemistry at University College London, celebrates the art and science of the chemical elements. Today he looks at helium. Helium is a finite resource here on Earth and many branches of science need it. Doctors need it to run MRI machines to d ...  Show more

Helium is full of contradictions. It’s the second most abundant element in the universe, but is relatively rare on Earth. It’s non-reactive, totally inert—yet the most valuable helium isotope is sourced from thermonuclear warheads. And even though we treat it as a disposable gas, ...  Show more

Encore episode. Helium is the second-most common element in the cosmos, but it's far rarer on planet Earth. As part of our celebration of the periodic table's 150th birthday, correspondent Geoff Brumfiel shares a brief history of helium's ascent, to become a crucial part of rocke ...  Show more

Helium is the only truly non-renewable resource, and it's essential for things like MRI machines and nuclear reactors, but should we be worried? And, we turn air into food, so why can’t we get carbon to leave the atmosphere – or helium to stay? In this episode, Cosmos Science Jou ...  Show more