What would we be without mucus? Can we live on water? How much does life weigh? Finding out the answers is the aim of ARTE's new science show.

Several studies have shown a significant decline in sperm count in the last 50 years. Are we heading towards a sperm crisis?

The social cost of selfish people, and how to deal with them.

Love may drive you crazy - but it also keeps you alive.

With the legal framework of space exploration and the exploitation of its resources still unclear, is space being stolen from us?

We cannot escape our fate and we cannot escape ourselves. But we also have our limits: confused thinking, misleading intuitions, unrealiable memories... What consequences do these potential errors have on our relationship to the world and to ourselves? Just how far can we trust ourselves?

More women are finding it increasingly difficult to have children. 42 investigates why.

All living beings stop growing at some point. The global economy is different: it just keeps growing. Is a world without economic growth possible and what might that mean for the future?

Nation states rarely repay their debts in full – yet they do not go bankrupt. How does this work?

Can we avoid the largest mass exctinction event since the dinosaurs and save the biodiversity of our planet?

Studies show that liking, commenting and scrolling endlessly presents as many risks as it does opportunities.

Albert Einstein, Isaac Newton or Leonardo da Vinci: Why do some individuals, and not others, become geniuses?

Wind speeds on the planet are decreasing.

Stress levels, sleep, sexuality: Hormones in our bodies wield enormous power over us. They control us, but can we control them?

Is there a "planet B" somewhere in the universe? Scientists have never been closer to finding an answer.

But can we really describe loneliness as a disease? And could this deeply human feeling be contagious?

AI may mean unemployment on a massive scale. Could humanity flourish after this major upheaval?

Our feelings are something very private and personal. But what if AI could read our emotions and adapt to them?

Time travel is theoretically possible, according to scientists.

Scientists are doing more thorough research. Should we take the existence of UFOs more seriously?