Astronomers have gleaned some of the best data yet on the composition of a planet known as HR 8799c--a young giant gas planet about 7 times the mass of Jupiter that orbits its star every 200 years.
Astronomers have gleaned some of the best data yet on the composition of a planet known as HR 8799c--a young giant gas planet about 7 times the mass of Jupiter that orbits its star every 200 years.
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