In the search for planets similar to our own, an important point of comparison is the planet's density.
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In the search for planets similar to our own, an important point of comparison is the planet's density.
Trumpler 3 and NGC 2353 (Labeled). X-ray: NASA/CXC/Penn State Univ/K. Getman; Optical/IR: PanSTARRS; Image Processing: NASA/CXC/SAO/N....
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