Question

what is white hole ?​

Answer 1

the white hole is a hypothetical region of spacetime and singularity which cannot be entered from the outside, although energy-matter, light and information can escape from it.

Answer 2

ᴀ ᴡʜɪᴛᴇ ʜᴏʟᴇ ɪs ᴀ ʙɪᴢᴀʀʀᴇ ᴄᴏsᴍɪᴄ ᴏʙᴊᴇᴄᴛ ᴡʜɪᴄʜ ɪs ɪɴᴛᴇɴsᴇʟʏ ʙʀɪɢʜᴛ, ᴀɴᴅ ғʀᴏᴍ ᴡʜɪᴄʜ ᴍᴀᴛᴛᴇʀ ɢᴜsʜᴇs ʀᴀᴛʜᴇʀ ᴛʜᴀɴ ᴅɪsᴀᴘᴘᴇᴀʀs. ɪɴ ᴏᴛʜᴇʀ ᴡᴏʀᴅs, ɪᴛ’s ᴛʜᴇ ᴇxᴀᴄᴛ ᴏᴘᴘᴏsɪᴛᴇ ᴏғ ᴀ ʙʟᴀᴄᴋ ʜᴏʟᴇ. ʙᴜᴛ ᴜɴʟɪᴋᴇ ʙʟᴀᴄᴋ ʜᴏʟᴇs, ᴛʜᴇʀᴇ’s ɴᴏ ᴄᴏɴsᴇɴsᴜs ᴀʙᴏᴜᴛ ᴡʜᴇᴛʜᴇʀ ᴡʜɪᴛᴇ ʜᴏʟᴇs ᴇxɪsᴛ, ᴏʀ ʜᴏᴡ ᴛʜᴇʏ’ᴅ ʙᴇ ғᴏʀᴍᴇᴅ.

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