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Two identical twins work for NASA on the same mission. One twin will be in the mission control center monitoring the space flight that the second twin takes to the edge of our solar system traveling at a speed of $66\text{%}$ of the speed of light.

After $25\text{ years}$ on earth, the two twins meet again when the spaceship lands.

Which of the following statements is true?

Choose TWO answers.


Both twins aged $25\text{ earth years}$ and still appear identical.


Both twins aged; however, they aged at a different rate.


The twin who traveled in space has aged $25\text{ earth years}$.


The twin who worked in mission control has aged $25\text{ earth years}$.

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