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21.
What is the name of the region on the Moon's surface where the first human landing occurred in 1969?
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22.
What is the name of the spacecraft that has been exploring the outer planets of the solar system, including Jupiter, Saturn, Uranus, and Neptune?
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23.
What is the term for a group of stars that form a recognizable pattern or shape in the night sky?
Explanation:
24.
What is the term for the time it takes for a planet to complete one orbit around the Sun?
Explanation:
25.
What is the name of the phenomenon where a total lunar eclipse coincides with the Moon appearing larger and reddish in color?
Explanation:
26.
Which type of galaxy is characterized by a spiral shape with distinct arms and often contains young, hot stars?
Explanation:
27.
What is the name of the region in space where the gravitational pull is so strong that not even light can escape, making it invisible?
Explanation:
28.
What is the term for a sudden burst of energy and light on the Sun's surface caused by magnetic activity?
Explanation:
29.
Which planet is known for its beautiful and prominent ring system composed of ice particles?
Explanation:
30.
What is the term for the study of the origin, evolution, and fate of the universe?