We are able to retrieve info from spacecraft despatched by way of wormholes

If you happen to fall into a space wormhole, you won’t come back. It closes abruptly behind you.but You may have enough time to send a message On November 15th the researchers Physics Review D.

no one has seen wormholebut theoretically they could provide shortcuts to distant parts of the universe or entire other universes, if they exist (Serial Number: 7/27/17). Physicists have long known that one of the most commonly studied types of wormholes would be extremely unstable, collapsing if any matter entered it. It’s unclear, though, how quickly this might happen, or what that means for something or someone who enters it.

Now, a new computer program shows how a type of wormhole responds when something passes through it.

In a wormhole simulation, “you build a detector and you send it out,” says Ben Kain, a physicist at the College of the Holy Cross in Worcester, Massachusetts. “You don’t necessarily have to make it return, because you know the wormhole is about to collapse — but can the light signal return in time before it collapses? We found that it is possible.”

Previous work on wormholes had concluded that cosmic tunnels could remain open as they traveled back and forth, if they were supported by a very exotic form of matter known as “ghost matter,” Kane said. “.

In theory, ghost matter responds to gravity in the exact opposite way as normal matter. That is, apples of ghost matter will fall from the branches instead of falling.Although allowed Einstein’s general theory of relativityGhost matter almost certainly does not exist in reality, Kain said (SN: 2/3/21).

Kane, however, simulated ghostly matter passing through the wormhole and found that it caused the wormhole to expand, rather than collapse, as expected.

The situation is different for anything made of ordinary matter. Kane’s simulations confirmed that this triggers a collapse that squeezes the hole shut and leaves something like a black hole behind. But it happens slowly enough for a fast-moving probe to send a lightspeed signal back to us before the wormhole closes completely.

Had such a thing been discovered, Kane wouldn’t have imagined sending a human through a wormhole. “It’s just capsules and cameras. It’s all automated,” he said. It will be a one-way trip, “but we can at least get some video of what the device sees.”

Sabine Hossenfelder, a physicist at the Center for the Philosophy of Mathematics in Munich, says the idea should be viewed with skepticism. “[It] requires a hypothetical existence [things] Everything we know doesn’t exist… a lot of what you can do mathematically has nothing to do with reality. “

Still, Kane says it’s a worthy effort that may reveal ways to make wormholes that don’t rely on ghostly matter to stay open long enough for us to travel across the universe and beyond. Places shuttled back and forth.