Why do solar eclipses occur?
Show answer & explanation
Answer: Moon passes between Earth and sun
Moon passes between Earth and sun ✓ — Correct! Solar eclipses occur when the Moon passes directly between Earth and Sun during new moon phase. Moon's shadow falls on Earth—those in umbra (darkest shadow) see total eclipse; penumbra sees partial. Rare because Moon's orbit tilts 5° from Earth's orbital plane—alignment needed. Moon's apparent size nearly matches Sun's (coincidence!)—perfect for total eclipses. As Moon recedes from Earth, future total eclipses will cease!
Planets align with sun — Wrong. Planetary alignment doesn't cause solar eclipses. Moon passing between Earth and sun during new moon creates solar eclipses.
Sun temporarily dims naturally — Wrong. The sun doesn't dim. Solar eclipses occur when the moon's shadow falls on Earth, temporarily blocking sunlight in that location.
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