Backlight S25 E15 Are we alone in the universe?

Astronomer Casper Farret Jentink works deep in the forests above Geneva on one of the biggest questions humanity has ever asked itself: are we alone in the universe? We are born alone, we die alone, and in between we try to understand what it means to be there at all. In a workshop, half-observatory, half science fiction decor, astronomer Casper Farret Jentink builds instruments with Swiss precision that can accurately measure light from distant stars to five silicon atoms, in search of a second Earth.