Recent questions in Speed of Light

+15 votes

0 answers

How does anyone know that time does not in fact stop at the speed of light? Especially since no one has gone or can travel at the speed of light to see what time does…

asked Mar 17, 2022 in Speed of Light by mp8410

+2 votes

0 answers

Does light require a constant force to keep it moving, or does it move on its own?

asked Mar 17, 2022 in Speed of Light by Imran Aghayev

+25 votes

0 answers

Can you break the laws of physics by traveling at speeds greater than light (hypothetically)?

asked Mar 16, 2022 in Speed of Light by Tan M

+16 votes

0 answers

What are the mass and velocity of light compared to other things (speed of sound, etc.)?

asked Mar 16, 2022 in Speed of Light by RadiantVerse

+11 votes

0 answers

Is it possible to get something (specifically matter, not light or sound) to travel at 1 million km/h in space/a vacuum?

asked Mar 16, 2022 in Speed of Light by MysticHarmony

+11 votes

0 answers

If we could go faster than light speed, would we ever see the same sunset twice because we're moving too fast for our own planet's sunrises and sunsets?

asked Mar 16, 2022 in Speed of Light by Boolay

+20 votes

0 answers

How can we relate momentum and energy for electrons in motion with a speed less than the speed of light but greater than zero?

asked Mar 16, 2022 in Speed of Light by LuminousMystic

+17 votes

0 answers

If something is a few thousand light years away, how do we know it is still there?

asked Mar 16, 2022 in Speed of Light by smalldave

+3 votes

0 answers

If the universe is expanding, then does light traveling from a star 10 billion light years away actually take 10 billion years to reach us, or does it take longer because it also has to also traverse the distance the universe expanded in that time?

asked Mar 16, 2022 in Speed of Light by moorbathtub

+9 votes

0 answers

Can you travel faster than the speed of light (FTL)? If so, would time slow down for you relative to those left behind on Earth?

asked Mar 16, 2022 in Speed of Light by minibusbefitting

+16 votes

0 answers

If aliens are advanced enough to travel millions or billions of light years to reach Earth, why haven't they contacted or visited us yet?

asked Mar 16, 2022 in Speed of Light by Anron

+22 votes

0 answers

If a moving particle had infinite mass at rest wouldn't that mean that whatever speed it has it would have infinite mass or energy everytime?

asked Mar 16, 2022 in Speed of Light by RadiantCharm

+15 votes

0 answers

Will a faster than light, wormhole or warp drive ever exist?

asked Mar 15, 2022 in Speed of Light by Jamie

0 votes

0 answers

If we had 300,000km of coiled optical fiber cable and could see both ends, would we be able to see the light delay of 1 second, supposing a light source was switched on at one end while looking at the other?

asked Mar 15, 2022 in Speed of Light by LunarFlare

+1 vote

0 answers

If you fly through space at a super high speed (speed of light) and you come back to earth 10 years later, is the earth only 10 years older?

asked Mar 15, 2022 in Speed of Light by PhoenixAlchemy

+9 votes

0 answers

In terms of light speed, how far is the Sun from the Earth?

asked Mar 15, 2022 in Speed of Light by diligencecongress

+26 votes

0 answers

Is there a limit to how fast spacecraft can travel?

asked Mar 14, 2022 in Speed of Light by BDY62

+9 votes

0 answers

Can humans hear/see high frequency sounds (light)? If so, at what speed would it travel to us from that object?

asked Mar 14, 2022 in Speed of Light by boyestimate

+4 votes

0 answers

How long is 6,000 light years in normal years?

asked Mar 14, 2022 in Speed of Light by Sparky99

+13 votes

0 answers

If Sonic is faster than light, how can he be caught by anything?

asked Mar 14, 2022 in Speed of Light by Adrian Offer

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Recent questions in Speed of Light

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