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What happens if the Sun disappears for 10 seconds?

For eight minutes, nothing would seem different. Then, in an instant, Earth would plunge into darkness, stars would flood the sky, and our planet would drift ever so slightly off course. In this Kurzgesagt-style explainer, we explore light delay, gravity’s finite speed, the global reaction to sudden night, a tiny orbital nudge of ~300 km, and the barely measurable long-term effects on climate and our year. Ten seconds of cosmic silence… and a new appreciation for the Sun’s steady heartbeat.

Key ideas

•⁠ ⁠Light and gravity both propagate at finite speed, so Earth “feels” the Sun’s disappearance ~8 minutes later
•⁠ ⁠A 10-second lapse yields an instantaneous global night and small but real orbital drift
•⁠ ⁠Long-term effects are minuscule, yet they reveal the precision of celestial mechanics
•⁠ ⁠The Sun is not just light and heat — it’s the anchor of life and stability on Earth

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#Space #Astronomy #KurzgesagtStyle #ScienceExplained #WhatIf #Sun #SolarSystem #Physics #Cosmology #Educational