Can black holes become white holes?

Can black holes become white holes? – Remy, age 9, Wangaratta, Victoria Hi Remy! Thank you for this great question. The short answer, unfortunately, is no. White holes are really just something scientists have imagined — they could exist, but we’ve never seen one, or even seen clues that one may exist. For now, they are an idea. To put it simply, you can imagine a white hole as being a black hole in reverse. So if time was running backwards, black holes would look like white h