Recent questions in Speed of Light

+102 votes

0 answers

How does the Enterprise and other Federation starships achieve faster-than-light speeds?

asked Jun 14, 2022 in Speed of Light by ubergay

+9 votes

0 answers

What is the relativistic mass of a body while approaching light speed?

asked Jun 14, 2022 in Speed of Light by Whitling2k

+25 votes

0 answers

Can light go faster than its current speed in any medium (air, water etc)?

asked Jun 14, 2022 in Speed of Light by milleniumaire

+21 votes

0 answers

If we can somehow travel at 99.99% of the speed of light, would we be able to achieve interstellar travel?

asked Jun 13, 2022 in Speed of Light by Charrington Lawrence

+7 votes

0 answers

As light travels through space, what happens to it since it is said that we can't see farther galaxies due to insufficient light reaching us?

asked Jun 13, 2022 in Speed of Light by James Elder

+220 votes

0 answers

How long would it take for a probe launched from Earth to reach the nearest star system at the speed of light, assuming no obstacles and only one engine on board?

asked Jun 13, 2022 in Speed of Light by snezza31

+11 votes

0 answers

What is the best theoretical mode of faster-than-lightspeed travel?

asked Jun 12, 2022 in Speed of Light by Question on Ferm SDS

+39 votes

0 answers

If someone is traveling at the speed of light, would it be possible for them to look back and see their past self? If so, how far out would they be able to see their past self?

asked Jun 11, 2022 in Speed of Light by Monster

+70 votes

0 answers

According to Einstein's theory of relativity, if both observers meet, synchronize their clocks, then one observer speeds away with a fraction of the speed of light, then comes back and they meet again, will there be a time difference on the clocks?

asked Jun 11, 2022 in Speed of Light by snezza31

+75 votes

0 answers

How long does it take for the "light" to travel to earth?

asked Jun 10, 2022 in Speed of Light by AstralNomad

+25 votes

0 answers

If I put a mirror into space going away from me at half the speed of light, would I see the past in slow motion?

asked May 20, 2022 in Speed of Light by Phil_from_London

+5 votes

0 answers

How far can we travel at near-light speeds?

asked May 20, 2022 in Speed of Light by Rhys Mog

+158 votes

0 answers

What are some science fiction technologies that could allow humans to travel faster than the speed of light, and what would happen if we actually did go FTL?

asked May 20, 2022 in Speed of Light by Mypyh4oo

+16 votes

0 answers

How fast can sound travel through a vacuum? What is the speed limit of sound traveling through any sort of electrical device?

asked May 19, 2022 in Speed of Light by Galaxy123

+26 votes

0 answers

Can the velocity of light be calculated by a man?

asked May 19, 2022 in Speed of Light by paintycait

+17 votes

0 answers

How much energy is required to accelerate a particle to near the speed of light?

asked May 19, 2022 in Speed of Light by Maj

+203 votes

0 answers

If two galaxies are moving apart at (z is greater than 1.4) more than the speed of light, then can they possibly have an inertial frame of reference in common?

asked May 18, 2022 in Speed of Light by mr bodgit

+415 votes

0 answers

I keep trying to get my head around telescopes observing things in our past. So if we are looking at light from the distant past, how did we get ahead of the light?

asked May 17, 2022 in Speed of Light by Tony_montana

+74 votes

0 answers

How do some people say that they have traveled faster than the speed of light, even though it is impossible to do so?

asked May 16, 2022 in Speed of Light by Einsgruber

+97 votes

0 answers

If you traveled at the speed of light, would you still be able to see anything in front of you?

asked May 16, 2022 in Speed of Light by BlazeHorizon

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