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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 ...

Nobel Prize in Physics 2020: Discoveries about black holes

This year's Nobel Prize in Physics is being awarded to Roger Penrose 'for the discovery that black hole formation is a robust prediction of the general theory of relativity' and jointly to Reinhard Genzel and Andrea Ghez 'for the discovery of a supermassive compact object at the centre of our galaxy.'

from Galaxies News -- ScienceDaily https://ift.tt/2GvLDCL

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