What are the key characteristics of the newly discovered exoplanet Kepler-186f-II?

Kepler-186f-II is approximately 1.2 times the size of Earth, is believed to be rocky, and orbits its red dwarf star within the habitable zone, receiving about 75% of the light Earth gets from the Sun. It has an orbital period of about 42 Earth days.

How was Kepler-186f-II discovered and confirmed?

The planet was initially identified by NASA's Transiting Exoplanet Survey Satellite (TESS) and later confirmed through ground-based observations, including data from the Very Large Telescope (VLT).

What is the significance of Kepler-186f-II being in the habitable zone?

Being in the habitable zone means the planet's distance from its star could allow for liquid water to exist on its surface, a crucial ingredient for life as we know it. This makes it a prime candidate for further study.

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Breaking: New Exoplanet Discovered in Habitable Zone!

In a stunning development, astronomers have confirmed the discovery of Kepler-186f-II, a new exoplanet residing squarely within its star's habitable …

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Sarah Voss

Jun 17•1 min read

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Breaking: New Exoplanet Discovered in Habitable Zone!

folder_openEXOPLANETS schedule1 min read eventPublished Jun 17, 2026 personSarah Voss

Written by Sarah Voss

Sarah Voss is the editorial byline for SpaceBox CV's coverage of commercial spaceflight, satellite networks and space science. Articles published under this byline are researched and edited by the SpaceBox team, and link to their primary sources u2014 agency releases, mission documentation and published research u2014 so readers can check the original for themselves.