The seasons are something natural, but their astrophysical origin is not trivial, and the seasons on other planets can be very different from those on Earth.
On this day Albert Einstein was born in Germany, author of the theory of relativity, who determined that the laws of physics are the same for all non-accelerating observers.
The light of stars and galaxies has allowed us to study the universe for 2000 years, but in the last decades we are beginning to study it by other methods.
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.
