Her er argumenterne for at tage kontakt til aliens ved at sende beskeder ud i fremtiden.
We talked to sociologist Andrew Scull about his new book Madness in Civilization, which traces the history of mental health disorders over 3000 years.
Scientist Hari Mogosanu thinks moving humans to Mars is our best bet for protecting mankind against extinction.
“We’re going to change the world. If my theory is correct, this will change everything. This will ruffle feathers, don’t you think anything else. You ask Galileo, you ask Darwin. This is going to cause an uproar.” – Jim Penman