Recent questions in Speed of Light

+5 votes

0 answers

How would you convert a km to light year and light year to km? Is there a formula?

asked May 14, 2023 in Speed of Light by StellarVerse

+4 votes

0 answers

What is red shift/blueshift? How does it relate to the speed of an object or Galaxy?

asked May 14, 2023 in Speed of Light by freddy198

+60 votes

0 answers

If gravity travels at the speed of light, are we attracted to where the sun was 8 minutes ago instead or where it is now? How does this affect our orbit around the Sun?

asked May 13, 2023 in Speed of Light by Matt_sx

0 votes

0 answers

I recently saw a news report that they managed to accelerate photons 30% above the speed of light in a vacuum using plasma, how is that possible? Did they use some trick and it's not like that? What does that imply?

asked May 13, 2023 in Speed of Light by Rachie1752

+76 votes

0 answers

Is there a limit to how fast an object can travel, and is traveling at the speed of light possible?

asked May 13, 2023 in Speed of Light by StellarMystic

+128 votes

0 answers

Do gravitational waves reach Earth sooner than the gamma ray bursts? If both travel at the speed of light why is there a discrepancy?

asked May 13, 2023 in Speed of Light by lauren7264

+15 votes

0 answers

What speed do you have to go to go back in time (theoretically)?

asked May 13, 2023 in Speed of Light by Trac

+5 votes

0 answers

If one were to travel at the speed of light or faster, would it take an infinite amount of time to get anywhere?

asked May 13, 2023 in Speed of Light by Rustico

+38 votes

0 answers

How can we determine the actual distance between two points in the universe rather than measure the distance the light has traveled between them?

asked May 13, 2023 in Speed of Light by MysticOracle

+125 votes

0 answers

Does a speed at which an object moves determines its color when observed?

asked May 12, 2023 in Speed of Light by Timo De Winter

+89 votes

0 answers

Is it possible to travel faster than light? If so, how difficult would it be? Would it take many years to reach the destination?

asked May 12, 2023 in Speed of Light by swank (2.5k points)

+3 votes

0 answers

Does the speed of light change when it passes through a metal?

asked May 12, 2023 in Speed of Light by zebra

+21 votes

0 answers

What is the light speed in the universe, and where does the light come from to go where?

asked May 12, 2023 in Speed of Light by samross1986

+11 votes

0 answers

Can traveling at speeds close to the speed of light cause damage?

asked May 11, 2023 in Speed of Light by south1

+9 votes

0 answers

If a person travels faster than the speed of light, will they arrive in another time period altogether (past or future), or will they be able to return to their original time period?

asked May 11, 2023 in Speed of Light by bungle bear

+2 votes

0 answers

What would happen if we could think at the speed of light?

asked May 11, 2023 in Speed of Light by PHILPH

+22 votes

0 answers

If the source of light moves laterally, does the light beam move laterally too, or is it independent from the movement of its source? Does it have implications for Einstein's light clocks?

asked May 11, 2023 in Speed of Light by Callum Palin

+8 votes

0 answers

How will humans get around if they ever achieve faster-than-light travel?

asked May 11, 2023 in Speed of Light by Madeofale

+114 votes

0 answers

Why does an electric field move with a constant speed and not at the speed of light?

asked May 11, 2023 in Speed of Light by nrj101

+21 votes

0 answers

How much time does it take for sunlight to reach the Moon?

asked May 11, 2023 in Speed of Light by StellarHarmony

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