7. What is the universe?
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The universe (Latin: universus) is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. ... According to estimation of this theory, space and time emerged together 13.799±0.021 billion years ago, and theuniverse has been expanding ever since.
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ᴛʜᴇ ᴜɴɪᴠᴇʀꜱᴇ ɪꜱ ᴀʟʟ ᴏꜰ ꜱᴘᴀᴄᴇ ᴀɴᴅ ᴛɪᴍᴇ ᴀɴᴅ ᴛʜᴇɪʀ ᴄᴏɴᴛᴇɴᴛꜱ, ɪɴᴄʟᴜᴅɪɴɢ ᴘʟᴀɴᴇᴛꜱ, ꜱᴛᴀʀꜱ, ɢᴀʟᴀxɪᴇꜱ, ᴀɴᴅ ᴀʟʟ ᴏᴛʜᴇʀ ꜰᴏʀᴍꜱ ᴏꜰ ᴍᴀᴛᴛᴇʀ ᴀɴᴅ ᴇɴᴇʀɢʏ. ᴛʜᴇ ʙɪɢ ʙᴀɴɢ ᴛʜᴇᴏʀʏ ɪꜱ ᴛʜᴇ ᴘʀᴇᴠᴀɪʟɪɴɢ ᴄᴏꜱᴍᴏʟᴏɢɪᴄᴀʟ ᴅᴇꜱᴄʀɪᴘᴛɪᴏɴ ᴏꜰ ᴛʜᴇ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ ᴏꜰ ᴛʜᴇ ᴜɴɪᴠᴇʀꜱᴇ.
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