Swirling galaxies! Scientists and astronomers have determined that there are other galaxies just like ours, and have even calculated how old they are. Learn about how scientists determined that our galaxy is a giant swirling pinwheel of stars. Stories by Ken Croswell Ph.D., Tony Helies, and Highlights for Children.
© 2019 Highlights for Children (Luisterboek): 9781666576658
Publicatiedatum
Luisterboek: 25 juni 2019
Tags
Swirling galaxies! Scientists and astronomers have determined that there are other galaxies just like ours, and have even calculated how old they are. Learn about how scientists determined that our galaxy is a giant swirling pinwheel of stars. Stories by Ken Croswell Ph.D., Tony Helies, and Highlights for Children.
© 2019 Highlights for Children (Luisterboek): 9781666576658
Publicatiedatum
Luisterboek: 25 juni 2019
Tags
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