Is it possible that we've discovered the first white hole?

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Is it possible that we’ve discovered the first white hole?

White holes— the celestial opposite of a black hole— were once thought to be just theoretical, but we may have already seen one. If a black hole sucks in matter and doesn’t release it, a white hole is the opposite. It spews out matter, but prevents any matter from entering. White holes spit, black holes swallow.

A gamma ray burst back in 2006 didn’t fit with our understanding of where they come from - its long duration (102 seconds) meant that it had to be created in a supernova explosion, and yet there were no supernovas there for it to have come from. Its discoverers actually said that “this is brand new territory; we have no theories to guide us.”

Now, five years later, it’s being suggested that we might actually have caught sight of a white hole. The fierceness and duration of the explosion could well fit with a white hole briefly popping into existence, spewing out some matter, and then quickly collapsing into itself, resulting in this massive explosion. Although it’s not the most likely explanation - after all, it invokes something that many astronomers have concluded is exceedingly unlikely, verging on impossible - it can’t be immediately discounted.