What would happen if we fell into a black hole? What is beyond the event horizon? How are they detected? Black holes are fascinating cosmic objects that, in turn, raise many questions.
In the universe there are especially massive, ancient or luminous stars that stand out from the others. In this gallery, we show you the most outstanding ones.
Stars orbiting black holes reach incredible speeds, as if they were in a great cosmic juicer. Its observation allows to study the laws dictated by General Relativity, such as time dilation.
The event that will profoundly transform our star system will be the death of our Sun, which will turn into a red giant as it nears the end of its life, some five billion years from now.
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.
