Q
What would happen if the Sun disappeared?
A
Expert Answer
Gravity travels at light speed, so we'd orbit nothing for 8 minutes. Then Earth would fly off in a straight line. Photosynthesis would cease; surface temperatures would drop below freezing within weeks. Life might survive near geothermal vents or with artificial energy indefinitely.
Key Insight
Gravity travels at light speed, so we'd orbit nothing for 8 minutes.
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