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Coast forever at the same speed.

I’d say coast for a LFT, rather than forever.

Wormholes for space travel.

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Originally posted by Pipe Smoker:

quote:

Coast forever at the same speed.

I’d say coast for a LFT, rather than forever.

For sure- there is nearly no resistance in space- most empty space really is just that. Interstellar space may contain as little as 1 atom of any kind (most likely hydrogen) per cubic centimeter. Without intervention from a collision or gravity influence from a large body, very little forward momentum will be lost over time. Over millions if not billions of years.