Why are we unlikely to find Earth- like planets around halo stars in the Galaxy?
A)Halo stars formed from gas containing few heavy elements, the elements needed to create terrestrial planets like the Earth.
B)Halo stars formed directly from gas in the halo without forming a planetary disk.
C)Halo stars formed from gas containing lots of heavy elements and few of the light elements needed to create terrestrial planets like the Earth.
D)Planets around stars are extremely rare in our Galaxy.
E)Halo stars are all very low mass stars that cannot hold onto planets.

Question

Quizplus · Accepted Answer

Halo stars formed early in the history of the Milky Way, before many heavy elements had been produced by previous generations of stars. These heavy elements are necessary for the creation of terrestrial planets like Earth. Therefore, it is unlikely for Earth-like planets to be found around halo stars.

Why Are We Unlikely to Find Earth- Like Planets Around