Astronomers have spotted a fourth star in a planetary system called 30 Ari, bringing the number of such known quadruple-sun systems to two. Numerous two- and three-star planets have been identified.
Astronomers have spotted a fourth star in a planetary system called 30 Ari, bringing the number of such known quadruple-sun systems to two. Numerous two- and three-star planets have been identified.
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