How far could a spaceship go if we never ran out of thrust? (2020)

Re:How far could a spaceship go if we never ran out of thrus... by bobsmooth on Tuesday August 10, 2021 @04:15AM (#28126300)

I always knew intergalactic hydrogen might be a problem but I never considered the effect of travelling really fast on photon absorption.

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Re:How far could a spaceship go if we never ran out of thrus... by dvdkhlng on Tuesday August 10, 2021 @04:17AM (#28126320)

If you travel close to C, those photons will be blue-shifted into (depending on velocity) very energetic photons (x-ray, gamma spectrum) that may be rather difficult to shield against.

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Re:How far could a spaceship go if we never ran out of thrus... by Koshkin on Tuesday August 10, 2021 @06:59AM (#28127258)

> close to C

As a programmer, this gave me this warm feeling...

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Re:How far could a spaceship go if we never ran out of thrus... by weregiraffe on Tuesday August 10, 2021 @09:44AM (#28128770)

But when you accelerate even more, it will be C++.

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Re:How far could a spaceship go if we never ran out of thrus... by hateful on Tuesday August 10, 2021 @01:12PM (#28131451)

Special Relativity states that it's time that changes, not the speed of light. C is constant regardless of your reference frame. So, it's still C, but instead, it will take a lot longer to complete your project. You're definitely going to miss your deadline.

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Re:How far could a spaceship go if we never ran out of thrus... by rbanffy on Tuesday August 10, 2021 @04:42AM (#28126483)

The hydrogen may be a problem well before the light or CBR become another.

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