ᴀsᴛʀᴏɴᴏᴍᴇʀs ʜᴀᴠᴇ ᴅɪsᴄᴏᴠᴇʀᴇᴅ ᴛʀᴀᴄᴇs ᴏғ ᴛᴡᴏ ʜɪɢʜʟʏ ᴅᴇᴠᴇʟᴏᴘᴇᴅ ᴇxᴛʀᴀᴛᴇʀʀᴇsᴛʀɪᴀʟ ᴄɪᴠɪʟɪᴢᴀᴛɪᴏɴs.
The Kepler space telescope discovered the apparently more Dyson sphere (hypothetical superstructure that allows the use of absolutely all power...
The Kepler space telescope discovered the apparently more Dyson sphere (hypothetical superstructure that allows the use of absolutely all power...