- #1
Glynis
- 19
- 0
If the sun were to explode would the effect on Earth be simultaneous or would the explosion of the sun affect the Earth after eight minutes
In summary, if the sun were to explode, the Earth would not be immediately affected. It would take approximately eight minutes for the Earth to notice the change due to the time it takes for light and other effects to reach the Earth. However, even though the Sun explodes, it still maintains its gravitational influence on the Solar System, which can be measured as the shell of mass and energy expands.
- #2
Doc Al
Mentor
- 45,586
- 2,306
The Earth will only notice the change after eight minutes. This has been discussed many times, just recently in this thread: https://www.physicsforums.com/showthread.php?t=149144 (Caveat lector--not every post in that thread is accurate. 
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)- #3
DaveC426913
Gold Member
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BTW, I know you're just speculating about a hypothetical circumstance, but do note that, even though the Sun explodes, it still continues to have a gravitational influence. The mass doesn't simply vanish.
You could measure the drop in the gravitational field as the shell of mass and energy approached, passed and expanded out into the Solar System.
Nature abhors a vertical slope.
You could measure the drop in the gravitational field as the shell of mass and energy approached, passed and expanded out into the Solar System.
Nature abhors a vertical slope.
FAQ: The Sun Exploding: Effects on Earth
What will happen if the sun explodes?
If the sun were to suddenly explode, it would release a massive amount of energy and radiation into the solar system. This could potentially cause catastrophic damage to Earth and all other planets in our solar system.
Will the explosion of the sun destroy Earth?
It is unlikely that the explosion of the sun would completely destroy Earth. However, the intense heat and radiation from the explosion could potentially make the planet uninhabitable for life as we know it.
How long would it take for the effects of the sun's explosion to reach Earth?
The effects of the sun's explosion would travel at the speed of light, so it would take approximately 8 minutes and 20 seconds for the effects to reach Earth.
What would be the immediate effects on Earth?
The immediate effects on Earth would include a sudden increase in temperature and radiation levels, potentially causing widespread destruction and harm to living organisms. There may also be disruptions to global communication and technology systems.
Is there any way to prevent or predict a sun explosion?
Scientists are constantly monitoring the sun for any potential signs of instability, but at this time, there is no way to predict or prevent a sun explosion. However, the probability of the sun exploding in the near future is extremely low, so there is no immediate cause for concern.