Why does a spacecraft lose direct signal behind the Moon?
Show answer & explanation
Answer: Because the Moon blocks radio line-of-sight to Earth
Because the Moon blocks radio line-of-sight to Earth ✓ — Correct! Radio signals usually travel in near-straight lines, so when the Moon sits between Earth and the spacecraft, direct contact is temporarily blocked.
Because the far side is always darker and colder — Wrong. The far side is not permanently dark. It gets sunlight too. The problem is blockage, not darkness.
Because aliens on the far side mess with the signal — Wrong. There is no evidence that aliens are jamming the signal. The real issue is that the Moon physically blocks the path back to Earth.
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