Question

What is Galaxy??????​

Answer 1

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. We live on a planet called Earth that is part of our solar system. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems.

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Answer 2

ᴀ ɢᴀʟᴀxʏ ɪs ᴀ ʜᴜɢᴇ ᴄᴏʟʟᴇᴄᴛɪᴏɴ ᴏғ ɢᴀs, ᴅᴜsᴛ, ᴀɴᴅ ʙɪʟʟɪᴏɴs ᴏғ sᴛᴀʀs ᴀɴᴅ ᴛʜᴇɪʀ sᴏʟᴀʀ sʏsᴛᴇᴍs, ᴀʟʟ ʜᴇʟᴅ ᴛᴏɢᴇᴛʜᴇʀ ʙʏ ɢʀᴀᴠɪᴛʏ. ᴡᴇ ʟɪᴠᴇ ᴏɴ ᴀ ᴘʟᴀɴᴇᴛ ᴄᴀʟʟᴇᴅ ᴇᴀʀᴛʜ ᴛʜᴀᴛ ɪs ᴘᴀʀᴛ ᴏғ ᴏᴜʀ sᴏʟᴀʀ sʏsᴛᴇᴍ.

ɪɴ 1936, ʜᴜʙʙʟᴇ ᴅᴇʙᴜᴛᴇᴅ ᴀ ᴡᴀʏ ᴛᴏ ᴄʟᴀssɪғʏ ɢᴀʟᴀxɪᴇs, ɢʀᴏᴜᴘɪɴɢ ᴛʜᴇᴍ ɪɴᴛᴏ ғᴏᴜʀ ᴍᴀɪɴ ᴛʏᴘᴇs: sᴘɪʀᴀʟ ɢᴀʟᴀxɪᴇs, ʟᴇɴᴛɪᴄᴜʟᴀʀ ɢᴀʟᴀxɪᴇs, ᴇʟʟɪᴘᴛɪᴄᴀʟ ɢᴀʟᴀxɪᴇs, ᴀɴᴅ ɪʀʀᴇɢᴜʟᴀʀ ɢᴀʟᴀxɪᴇs.

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