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, which are free-floating exoplanets that drift through space unbound by the gravitational tug of a star. They can form within their own solar system and get ejected, or they can form independently, as well. The first study examines only the second discovery of an Earth-mass rogue planet—the first beingin September 2020—while the second study examines the potential number of rogue planets that could exist in our Milky Way Galaxy.
“Microlensing is the only way we can find objects like low-mass free-floating planets and even primordial black holes,” said Dr. Takahiro Sumi, who is a professor at Osaka University and lead author of the second study regarding the new potential estimate of rogue planets in our galaxy. “It’s very exciting to use gravity to discover objects we could never hope to see directly.” will accomplish, which currently has a contracted launch date of October 2026 and a commitment launch date of May 2027.
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