How an Exoplanet Odd Couple Survived by Traveling in From the Cold Together

How an exoplanet odd couple survived by traveling in from the cold together

By probing the atmosphere of a mini-Neptune exoplanet, the James Webb Space Telescope has found that it formed much farther from its star than it is today, possibly explaining the origin of many other mini-Neptunes in the process.

Astronomers Pin Down The Origins Of A Planetary Odd Couple - Astrobiology

Across the Milky Way galaxy, a planetary odd couple is circling a star some 190 light years from Earth. A normally “lonely” hot Jupiter is sharing space with a mini-Neptune, in a rare and unlikely pairing that’s had astronomers puzzled since the system’s discovery in 2020. Now MIT scientists have caught a glimpse into the […] The post Astronomers Pin Down The Origins Of A Planetary Odd Couple appeared first on Astrobiology.

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.