| And so the isotropy of the radiation from the Big Bang would no longer be inconsistent with the finiteness of the speed of light. |
| What little we know about this new subject consists of a few broad limitations such as the finiteness of the speed of light. |
| The intense X rays from a solar flare travel to Earth at the speed of light, giving space weather watchers little time to react. |
| Why is it easier to accelerate an electron to a speed that is close to the speed of light, compared to accelerating a proton to the same speed? |
| Given the assumed constancy of the speed of light, the calculations required to show that result are quite simple. |
| Albert Einstein theorized that the speed of gravity was around the speed of light, but no one proved it until now. |
