During which moon phases can eclipses happen? (choose all correct answers)New moonLast quarterFirst quarterWaxing gibbousWaning crescentFull moon

Eclipses can only occur during specific moon phases due to the alignment required between the Earth, Moon, and Sun. Here’s a breakdown of the relevant phases:

1. New Moon: This is when the Moon is directly between the Earth and the Sun. A solar eclipse occurs during a new moon when the Moon obscures the Sun's light.

2. Full Moon: This phase occurs when the Earth is directly between the Sun and the Moon. A lunar eclipse occurs during a full moon when the Earth's shadow falls on the Moon.

Incorrect Options:

• Last Quarter: During this phase, the Moon is half illuminated and positioned at a right angle to the Earth and Sun, making eclipses impossible.

• First Quarter: Similar to the last quarter, this phase has the Moon positioned at a right angle to the Sun and Earth; hence, no eclipses can occur.

• Waxing Gibbous: The Moon is not directly in line with the Earth and Sun during this phase, prohibiting eclipses.

• Waning Crescent: Like the waxing gibbous, this phase also does not allow for direct alignment.

Final Answer:

Eclipses can happen during New Moon and Full Moon phases.