Further, black holes and white holes are as intertwined as the names suggest. NASA astrophysicists have referred to the latter as “ the time-inverse of black holes .” ...

A NASA site calls white holes ‘very hypothetical.’ Actually, it calls white holes ‘VERY hypothetical,’ because, as far as I can gather, ...

Enter white holes, the hypothetical cosmic phenomena that might expel matter and energy instead of absorbing it. ... NASA's Perseverance Rover Captures Oddball Rock On Mars.

One final interpretation of white holes to end the discussion on. “You can think of the Big Bang as the ultimate white hole,” said astrophysicist Ezequiel Treister in a 2011 NASA chat. It’s not as ...