6 Questions
What is the most prominent astronomical object in the sky besides the Sun?
The Moon
Why do the Sun and the Moon appear to have the same angular size in the sky?
Although the Sun is about 400 times larger in diameter than the Moon, it is also about 400 times farther away, so both the Sun and the Moon have the same angular size of about 1/2°.
What is the name of the darkest part of the shadow cast by Earth or the Moon?
The umbra
What is the name of the lighter, more diffuse region of darkness in the shadow cast by Earth or the Moon?
The penumbra
What happens when the Moon's shadow strikes Earth?
People within the Moon's shadow see the Sun at least partially covered by the Moon, experiencing a solar eclipse.
What happens when the Moon passes into the shadow of Earth?
People on the night side of Earth see the Moon darken, experiencing a lunar eclipse.
Learn about the fascinating phenomenon of solar and lunar eclipses, where the Moon can appear to cover the Sun due to their almost equal apparent sizes in the sky. Understand the science behind these impressive natural events.
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