Here is some more background on the phenomena related to the quark star state:

And there are the black holes. These form from even more massive supernova explosions, and the gravity and density is so strong they overcome the forces holding atoms themselves together.

White dwarfs, neutron stars and black holes. These were all theorized by physicists, and have all been discovered by observational astronomers. We know they’re out there.

Ok so when do you think they will spot one?  Will it be with the hubble space telescope or perhaps one of the newer ones coming online in the near future in another country?  Check back for when they actually spot one of these quark stars.