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Mars and Earth - Small difference & big consequences

Einstein's theory of relativity suggests that time is not a constant and can vary based on gravitational fields and speed. In a strong gravitational field, time moves slower compared to a weaker one. Since Mars has a weaker gravitational field than Earth, time actually flows slightly faster there.  This concept has implications for future space missions, as the timing of communication and operation of spacecraft will need to account for this difference in how time elapses on Mars compared to Earth. Missions may need to adjust their schedules, operations, and technology to ensure accuracy and synchronization with Earth. Basically, the moment you bring gravity and velocity into the picture, time stops behaving like the simple, universal tick‑tock we experience in everyday life. And you’re absolutely right: Mars’ weaker gravity means clocks there run a little faster than clocks on Earth. What’s fascinating is how small the difference is—and how big the consequences become ...

Building a Mars base with bacteria

How do you make a base on Mars? Simple: you send some bacteria to the red planet and let them mine iron. After a couple of years, you send in human settlers who use the iron to construct a base. That, in a nutshell, is the proposal of Ph.D. candidate Benjamin Lehner of Delft University of Technology. Together with Delft colleagues and researchers from the space agencies ESA and NASA, Lehner has worked on an extensive plan for an unmanned mission utilizing bacteria for the past four years. On Friday the 22nd of November, he will defend his Ph.D. thesis at TU Delft.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences https://ift.tt/35m6yiA

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