How long is 10 years in space on Earth?

Can you elaborate on how we might conceptualize the passage of time in space compared to Earth, particularly when it comes to a duration of 10 years? Are there any factors that would affect the perception of time for astronauts or those in space, such as the speed of light, gravity, or the lack of a daily rhythm? How might the effects of time dilation, if any, impact a 10-year space mission when measured from Earth's perspective? Additionally, are there any psychological implications that could arise from the disparity in time perception between space and Earth?