What Would Happen If The Sun Disappeared?

What Would Happen If The Sun Disappeared?

Early scientists thought that the effects of the sun's disappearance would be instantaneous, and that even if we didn't notice its absence visually, the shift in gravity would be apparent. But we now know that gravity waves travel at the speed of light, which means that the planets would continue to orbit the "gap" where the sun had been for several minutes after its disappearance.

What Would Happen If The Sun Disappeared?

It would take a bit to realize.

03:52

Key Facts In This Video

  • 1

    Gravity waves travel at the speed of light. (0:26)

  • 2

    If the sun disappeared and released Earth from its orbit, Earth would travel at 30 km/s into space. (1:32)

  • 3

    In the sun's absence, the Earth would take thousands of years to radiate its heat completely off. (2:18)

The Future Of Our Sun And Earth

The sun's luminosity is changing. Find out what that means.

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