21st Century Astronomy
21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 18, Problem 30QP
To determine

The gamma ray burst in our galaxy.

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In a globular cluster, astronomers (someday) discover a star with the same mass as our Sun, but consisting entirely of hydrogen and helium. Is this star a good place to point our SETI antennas and search for radio signals from an advanced civilization? Group of answer choices   No, because such a star (and any planets around it) would not have the heavier elements (carbon, nitrogen, oxygen, etc.) that we believe are necessary to start life as we know it.   Yes, because globular clusters are among the closest star clusters to us, so that they would be easy to search for radio signals.   Yes, because we have already found radio signals from another civilization living near a star in a globular cluster.   No, because such a star would most likely not have a stable (main-sequence) stage that is long enough for a technological civilization to develop.   Yes, because such a star is probably old and a technological civilization will have had a long time to evolve and develop there.
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