Surely you already know that this year marks the 500th anniversary of the death of the great Renaissance Man Leonardo da Vinci, but do you know what other scientific anniversaries we celebrate?
NASA has committed to sending astronauts there in 2030, making the Martian colonies seem like an ever closer reality. To celebrate, these are some of the best images of Mars in recent years.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.