Earth-sized exoplanet discovered in ‘our solar backyard’ by international team

“It’s a useful planet because it may be like an early Earth,” says Soares-Furtado.

Young, hot, earth-sized planet HD 63433d sits close to its star in the constellation Ursa Major, while two neighboring, mini-Neptune-sized planets identified in 2020 orbit farther out.

(photo credit: Alyssa Jankowski)

ByJUDY SIEGEL-ITZKOVICH

JANUARY 14, 2024 11:07

Updated: JANUARY 14, 2024 16:16

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