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.
If we managed to enter this impregnable place on the planet, an ordinary mercury thermometer would not help us to measure the temperature, although the rapid drop in our body temperature would do it to the lethal 28 degrees.
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.
