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New Discoveries Reveal Common Rogue Planets in Milky Way

1/2/2026

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Summary

Story summary

Astronomers confirmed a rogue planet the size of Saturn about 9,950 light-years from Earth using gravitational microlensing to measure its distance and mass, suggesting rogue planets may be more common in the Milky Way.
NASA's James Webb Space Telescope identified PSR J2322-2650b, an exoplanet with a carbon-dominated atmosphere and unusual conditions that challenge existing planetary formation theories.
These discoveries highlight ongoing advancements in understanding planetary science.

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Story summary

Astronomers confirmed a rogue planet the size of Saturn about 9,950 light-years from Earth using gravitational microlensing to measure its distance and mass, suggesting rogue planets may be more common in the Milky Way.
NASA's James Webb Space Telescope identified PSR J2322-2650b, an exoplanet with a carbon-dominated atmosphere and unusual conditions that challenge existing planetary formation theories.
These discoveries highlight ongoing advancements in understanding planetary science.