Question

what is galaxy??????????​

Answer 1

Answer:

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. The word galaxy is derived from the Greek galaxias, literally "milky", a reference to the Milky Way.

Explanation:

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Answer 2

Answer:

ᴀ ɢᴀʟᴀxʏ ɪs ᴀ ʜᴜɢᴇ ᴄᴏʟʟᴇᴄᴛɪᴏɴ ᴏғ ɢᴀs, ᴅᴜsᴛ, ᴀɴᴅ ʙɪʟʟɪᴏɴs ᴏғ sᴛᴀʀs ᴀɴᴅ ᴛʜᴇɪʀ sᴏʟᴀʀ sʏsᴛᴇᴍs, ᴀʟʟ ʜᴇʟᴅ ᴛᴏɢᴇᴛʜᴇʀ ʙʏ ɢʀᴀᴠɪᴛʏ. ... ᴀ ɢᴀʟᴀxʏ ɪs ᴀ ʜᴜɢᴇ ᴄᴏʟʟᴇᴄᴛɪᴏɴ ᴏғ ɢᴀs, ᴅᴜsᴛ, ᴀɴᴅ ʙɪʟʟɪᴏɴs ᴏғ sᴛᴀʀs ᴀɴᴅ ᴛʜᴇɪʀ sᴏʟᴀʀ sʏsᴛᴇᴍs. ᴀ ɢᴀʟᴀxʏ ɪs ʜᴇʟᴅ ᴛᴏɢᴇᴛʜᴇʀ ʙʏ ɢʀᴀᴠɪᴛʏ.

ᴍᴀʀᴋ ᴍᴇ ᴀs ᴀ ʙʀᴀɪɴʟɪᴇsᴛ