Watch the planetary resonance in the nearby Gliese 876 system
The red dwarf Gliese 876 (15 light years away) hosts one of the most interesting known exoplanet systems.
Two giant planets orbit in a 2:1 resonance (30 and 61 days), and together with a third outer planet they form a Laplace resonance, similar to Io–Europa–Ganymede around Jupiter.
This interactive 3D model lets you watch the system through time and see how the planets repeatedly align as they orbit the central star:
https://stellarcatalog.com/star/gliese-876/
Posted Mar 10, 2026, 11:31 AM UTC
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