Astronomers pin down the origins of a planetary odd couple
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Astronomers pin down the origins of a planetary odd couple
New measurements of a hot Jupiter and its mini-Neptune companion suggest both planets formed surprisingly far away from their host star.
by Jennifer Chu
https://news.mit.edu/2026/astronomers-pin-down-origins-planetary-odd-couple-0505
astronomy at PG: https://www.gutenberg.org/ebooks/bookshelf/101
Astronomers pin down the origins of a planetary odd couple
Using the James Webb Space Telescope, astronomers measured the composition of a mini-Neptune inside the orbit of a hot Jupiter. They say this highly unusual planetary system probably formed out beyond its star’s “frostline,” in the colder region of the protoplanetary disk.
news.mit.edu
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