The galaxy comprises of various stars. We are unlikely to find earth-like planets around halo stars in the galaxy because Halo stars need few heavy elements to create rocky planets.
A galaxy is a massive cluster of stars held together by t he effect of gravity.
Halo stars formed in an environment where there were few heavy elements to create rocky planets.
Thus, we are unlikely to find earth-like planets around halo stars in the galaxy because Halo stars need few heavy elements to create rocky planets.
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