GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Andromeda
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Messier 81
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Large Megallanic Cloud
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IC 1101
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Detailed explanation-1: -In 2022, astronomers identified lobes emitted from giant radio galaxy Alcyoneus. They span 16, 000, 000 light-years in extent, breaking all prior records. No other galaxy, even IC 1101, can compare: Alcyoneus is the largest known galaxy of all.
Detailed explanation-2: -At 16.3 million light-years wide, the Alcyoneus galaxy has a diameter 160 times wider than the Milky Way and four times that of the previous title holder, IC 1101, which spans 3.9 million light-years, researchers reported in a new study.
Detailed explanation-3: -The biggest known galaxy, first described in a 1990 study from the journal Science (opens in new tab), is IC 1101, which stretches as wide as 4 million light-years across, according to NASA (opens in new tab). Galaxies are often bound to each other gravitationally in groups that are called galaxy clusters.
Detailed explanation-4: -But the size is right-IC 1101 gargantuan. At an estimated 5.5 million light-years wide, over 50 Milky Ways could fit across it! And considering it takes our Solar System about 225 million years to complete a single revolution around the Milky Way… well…