Neutron stars weigh as much as the Sun but are as small as a city, their gravity is 100 billion times stronger than Earth's and they are magnets up to 1000 billion times stronger than the ones we use to stick stuff to our fridge. Does it sound strange? it's because..it is!
In this video that we produced for the University of Amsterdam, we show both kids and grown ups all about these fascinating cosmic objects and about what scientists can learn by studying them. Ah, and you also get to see an elephant floating on space.