This question is mainly inspired after watching the movie known as Interstellar
We knew that for time dilation caused by relativistic motion between A and B. A will measure B's clocks slowing down, and B will measure A's clock slowing down by the same rate, while they both measure their own clocks ticking normally
In interstellar, there's a planet that experience severe gravitational time dilation relative to earth's frame due to being in close proximity to the black hole Gargantula, therefore for every hour spent there measured by the astronaut's frame, 7 years will have passed in Earth's frame
Thus this means to Earth's frame, they will measure the astronaut's clocks to be ticking slower relative to them
But what about earth's clock as measured by the astronauts? Will they measure Earth's to be ticking faster than theirs (at the same magnitude it is slowed in earth's frame measuring theirs)?
Because if they both measured the other's clocks as running slower, then how could the twin paradox like aging difference be possible?