Complex sentence: Terzan 1 is a globular cluster located around 20.000 light-years from Earth in the constellation of Scorpius, it is one of about 150 globular clusters belonging to the Milky Way.
Split into simpler sentences: Terzan 1 is a globular cluster located around 20.000 light-years from Earth in the constellation of Scorpius. It is one of about 150 globular clusters belonging to the Milky Way.