A team of astronomers lead by Alfred Rosenberg of Padova, Italy has closer investigated globular cluster Palomar 1. First, they confirm its nature as a globular by finding that its properties and location in the outer halo, about 55,000 light-years from the Galaxy's center, contradict the possibility of a very old open cluster.
They find that Palomar 1 is probably younger than most globulars, and could have been created in a different formation process.