When a star die, how big has to be the core in order to become a black hole?
1.4 times the mass of the Sun
Between 1.4 and 2.8 times the mass of the Sun
None of above
Why nothing can escape from a black hole?
Because black holes are very big
Because its escape velocity is unbeatable
Both are correct
What is spaghettification?
The main technique for making spaghetti
When an object is stretched and ripped apart by the any black hole
Both are incorrect
We know nothing at the other side of the event horizon
Black hole are very dangerous but
If you do not get closer
If you move faster than the light