It is official, for the first time and thanks to gravitational waves, scientists were finally able to photograph the collision of two neutron stars, which was spotted about 130 million light-years ago, and the event was named GW170817.
Due to astronomy through gravitational waves, they identified the event and alerted the various observatories where the same would happen. This is a unique event that has never been observed or recorded, and it has never been possible to identify the direction of the gravitational waves, or even to observe the event that was creating them, and it must be borne in mind that this is still only the fifth time that gravitational waves are detected.
The gravitational waves previously detected were the result of collisions or mergers of binary black holes, which had merged into a single giant black hole, and there are essentially two reasons why we could not see them, the first being that up until the beginning of the year there were only two LIGO-type telescopes, which meant that only a small area of the sky could be observed, something that no longer reflects the truth since there is now the Virgo interferometer in Italy, which enabled to increase the event location detection, in about ten times.
The second reason is that black holes are by nature invisible to the human eye, since they absorb all light, we can only detect their existence due to changes in the space around them.
But neutron stars are a completely opposite case, being highly visible, so a collision between two stars of this type has always been a highly anticipated event.
It is amazing to observe this collision of two neutron stars, which happened about 130 million light years ago, as if we were watching television, this is just one of the first fantastic things we will be able to witness thanks to gravitational waves, and once again, Einstein was right.