If you were able to return to Earth 1 million years into the future, which of the following views of the sky would be most likely?
A)All the present stars, both blue and red, would be visible, but nearby stars would have moved in position.
B)The sky would be very much as it is now, because 1 million years is a very short time in astronomical terms.
C)Nearby stars would have moved in position, and many blue stars presently visible would no longer be visible.
D)A few red stars would be missing because they would have evolved, but stars would be the same and in the same positions as today.

Question

Quizplus · Accepted Answer

Nearby stars would have moved in position over 1 million years and many blue stars have short lifetimes and would no longer be visible after that time. This is consistent with our understanding of stellar evolution and the movement of stars within our Milky Way galaxy over time. Option A is incorrect because stars would have moved in position, not just nearby stars. Option B is incorrect because 1 million years is a significant amount of time in astronomical terms. Option D is incorrect because some stars would have evolved and no longer be visible.

If You Were Able to Return to Earth 1 Million