An astronomer observes an exoplanet that orbits its star every 42 Earth days. If a second exoplanet in the same system orbits every 63 days, after how many days will both planets align at their starting positions again? - Professionaloutdoormedia
**An astronomer observes an exoplanet that orbits its star every 42 Earth days. If a second exoplanet in the same
May 16, 2026
**An astronomer observes an exoplanet that orbits its star every 42 Earth days. If a second exoplanet in the same
