4 ms·

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

• dvdkhlng 5y ago
  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.
  • Koshkin 5y ago
    > close to C As a programmer, this gave me this warm feeling...
    • weregiraffe 5y ago
      But when you accelerate even more, it will be C++.
      • hateful 5y ago
        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.
• rbanffy 5y ago
  The hydrogen may be a problem well before the light or CBR become another.