Welcome to PM/AM, Seniorhelpline' morning briefing on the top science and tech stories for today.
Is there a back end to a black hole? Does the stuff that a black hole sucks up go anywhere, or does it only get compressed into a tiny point in space? Some cosmologists now suggest that black holes may spit out the matter that they ingest as they turn into into "white holes." It sounds a lot like an astronomical digestive track.
Although the idea of a white hole is hypothetical, theoretical physicists have proposed a . Called "quantum bounce," this mechanism would allow a black hole to switch to a white hole immediately after it's born. However, an observer wouldn't see the transformation until billions or trillions of years later because a black hole's gravity stretches time. It's possible that when we see something like a supernova nowadays, it may instead be coming from a black hole that died billions of years ago.
It's unclear how anyone would test this, but the new model could help explain how information can get out of a black hole. And it's always nice to have some symmetry in the cosmos — what goes in, must come out.
Russian physicists have raised more than $40,000 to build a Tesla tower that delivers electricity wirelessly. Is it a scam or just a really terrible idea? [via href='http://www.zdnet.com/forensic-scientist-identifies-suspicious-back-doors-running-on-every-ios-device-7000031795/' target='_blank">ZDNetWatch This
Ever wondered how tattoo ink stays permanent? It has a lot to do with the immune system.