Antarctic telescope spies alien worlds with ever-shifting orbits

Antarctic telescope spies alien worlds with ever-shifting orbits

Planetary systems evolve over dizzying timespans. It typically takes millions, even billions, of years for gravitational interactions to noticeably alter a planet’s orbital trajectory. This stability allowed life to take hold on Earth. It also means orbital planes are effectively fixed on human timescales.Continue ReadingCategory: Astronomy, ScienceTags: Exoplanet, Antarctic, Orbit

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