What are the most luminous objects in the universe?
supergiant stars
novae
supernovae
quasars
A quasar is an extremely energetic source of radiation powered by accretion disc around galaxy's central supermassive black hole. Quasars were much more common in the early universe, as all known quasars are extremely distant.
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Answers by country
supergiant stars
novae
supernovae
quasars
answers
Pakistan34
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Unknown36
France27
the United States584
Greece24
the Netherlands22
Canada50
Australia69
the Philippines53
Malaysia17
the United Kingdom226
India640
Austria90
Germany630
Poland12884
Switzerland39
South Africa19
Republic of Ireland20