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51.
What is the name of the boundary around a black hole beyond which nothing, not even light, can escape?
Explanation:
52.
Which type of galaxy is characterized by a spherical or ellipsoidal shape and contains mainly older stars?
Explanation:
53.
What is the term for the study of the distribution and properties of galaxies in the universe?
Explanation:
54.
Which celestial object is formed by the gravitational collapse of a cloud of gas and dust and can develop into stars?
Explanation:
55.
What is the term for the study of the chemical composition and processes in stars and other celestial objects?
Explanation:
56.
What is the name of the phenomenon in which light from a distant object is stretched and shifted toward the red end of the spectrum?
Explanation:
57.
Which space mission was launched to detect and study exoplanets, particularly those in the habitable zone of other stars?
Explanation:
58.
What is the term for the observed bending of starlight as it passes near the Sun during a solar eclipse?
Explanation:
59.
What is the name of the region in the center of a galaxy where a supermassive black hole is often found?
Explanation:
60.
Which type of radiation is associated with the emission of radio waves and is used in radio astronomy?