The Three Laws of robotics: A robot may not injure a human being or, through inaction, allow a human being to come to harm. A robot must obey the orders given it by human beings except where such orders would conflict with the First Law. 4th law: *KILL ALL HUMANS*

Soon, we will bring back some materials from mars, and soon enough, from other planets, moons, asteroids… all precautions will be taken, but… sure enough?

Inflation, bankrupt, massive unemployment, mayhem grow… every man for himself is the new and only rule.

The Three Laws of robotics: A robot may not injure a human being or, through inaction, allow a human being to come to harm. A robot must obey the orders given it by human beings except where such orders would conflict with the First Law. 4th law: *KILL ALL HUMANS*

They are among us, maybe… and our world is perfect to them… and we can be good food for them… or energy…they have high technology, and badass weapons… we stand no chance!

A giant EMP bomb destroys everything electric on earth… no more light, fridge, communication, radio, TV, hospitals… how long will we survive to this? (See « solar flare » for a natural alternative)

We’ve been lucky so far with tchernobyl, fukushima, or Beirut… Will the luck continue forever?

Super volcano, earthquake, hurricane, fire, tsunami, asteroid, drought, rising water… You name the movie!

A major cosmic impact comes every 100 million years… (remember Theia creating the moon, and the one killing the dinosaurs?) when was the last one, already?

At every moment, the sun can throw to us a major flare. Not only it could burn everything and everyone on the day side, but electromagnetic waves would grill everything electric…