Learning Path
Question & Answer
Choose the Best Answer
Full Moon
New Moon
First Quarter
Last Quarter
Understanding the Answer
Let's break down why this is correct
When the moon is opposite the Sun from our point of view, it is fully lit. Other options are incorrect because The New Moon occurs when the moon is between Earth and the Sun, so the side that faces Earth is dark; During First Quarter the moon shows only a half‑moon.
Key Concepts
Lunar Eclipse Phases
easy level question
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Deep Dive: Lunar Eclipse Phases
Master the fundamentals
Definition
Lunar Eclipse Phases involve the Earth casting its umbral and penumbral shadows on the Moon. As the Moon enters the Earth's penumbra, it gradually darkens, sometimes turning red due to atmospheric scattering. This phenomenon allows observers to study the relative sizes of the Earth and Moon based on the shape of the Earth's shadow on the Moon, as demonstrated by ancient Greek astronomers.
Topic Definition
Lunar Eclipse Phases involve the Earth casting its umbral and penumbral shadows on the Moon. As the Moon enters the Earth's penumbra, it gradually darkens, sometimes turning red due to atmospheric scattering. This phenomenon allows observers to study the relative sizes of the Earth and Moon based on the shape of the Earth's shadow on the Moon, as demonstrated by ancient Greek astronomers.
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