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41.
Which type of galaxy has a shape that appears flattened, like a pancake, and contains both old and young stars?
Explanation:
42.
What is the term for the study of the behavior and properties of matter under extreme conditions in space?
Explanation:
43.
Which type of radiation is associated with the afterglow of the Big Bang and provides important insights into the early universe?
Explanation:
44.
What is the name of the region surrounding a black hole where objects can still escape if they have sufficient speed?
Explanation:
45.
Which phenomenon, related to pulsars, results in the emission of regular pulses of electromagnetic radiation?
Explanation:
46.
What is the term for the bending of starlight as it passes near a massive celestial object like a galaxy or galaxy cluster?
Explanation:
47.
Which phenomenon occurs when two neutron stars merge, releasing a burst of gravitational waves and often creating heavy elements?
Explanation:
48.
What is the term for a theoretical entity that could be responsible for the gravitational effects observed in galaxies and clusters, although it remains undetected?
Explanation:
49.
What is the term for the process by which a main-sequence star like the Sun eventually becomes a red giant and expands?
Explanation:
50.
Which scientist is credited with proposing the concept of black holes and the theory of Hawking radiation?