What are the consequences of literal interstellar travel?

In the background for my book, I'm looking for an alternative way for space travel. What I'm currently considering: A starship travels to the center of a star by using the natural downwards flows that occur naturally in some stars, then uses the extreme gravity down there to create a wormhole and appear inside another star. Then, the ship gets out again and goes to wherever it needs to go through more traditional methods (Orion drive, lightsail, Em-drive, whatever).

Things I'm wondering about:

1. How would you protect yourself against the extreme gravity and heat inside a star? And how much energy would this take?
2. Would creating a wormhole inside a star have any unintended side effects?
3. Would the properties of certain stars mean you cannot enter or leave them in this way?

To explain more about the concept: gravity distorts spacetime. This happens in a different universe with slightly different laws of physics, and the idea is that the most distorted spacetime spots (i.e. stars and black holes) are actually distorted so much that the ones in the same galaxy have their spacetime distortions almost meet, but not quite. Because of this, it's actually much easier to create wormholes inside a star than it is to create starlike conditions that allow you to create a wormhole anywhere.

posted over 8 years ago

Nzall‭

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