And for that matter, could our universe be inside a black hole?
To Earthlings gazing into space, our solar system appears to be surrounded by billions of stars in the Milky Way. But if we look even further out, would it be possible to find evidence that we were in something even more fantastic, like a black hole?
So we can rule out the possibility that a black hole swallowed Earth at some point in its history; it would have been obliterated in a fraction of a second, Khanna said. But there's another way Earth might have ended up in the belly of a black hole: It could have formed there. This theory, known as Schwarzschild cosmology, suggests that our universe now expands within a black hole that is part of a parent universe. In theory, this scenario would mean that universes can exist within universes, like Russian nesting dolls, and that traveling back through a black hole — a likely impossible feat, since light can't even make the reverse journey — would unlock unknown realms, Khanna said.
Canada Latest News, Canada Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Search for Spin-Dependent Gravitational Interactions at Earth RangeA new search for an interaction between a particle's intrinsic spin and Earth's gravitational field probes physics in the regime where quantum theory meets gravity.
Read more »
Viral YouTube video explains NASA's search for alien lifeA space agency scientist explains NASA's efforts to find life beyond Earth.
Read more »
Earth Might Have Formed in Just a Few Million YearsThere's a growing body of evidence showing that Earth formed more quickly than thought. And it didn't wait for asteroids to bring its water.
Read more »
Groundwater extraction linked to drift in Earth's rotational poleThe capacity of water's mass to influence the Earth's rotation was found only in 2016.
Read more »
Humans have pumped enough groundwater to change Earth’s spin“Our study shows that among climate-related causes, the redistribution of groundwater actually has the largest impact on the drift of the rotational pole,” lead author Ki-Weon Seo said.
Read more »