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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 ...

First ever solar eclipse film brought back to life

The BFI and the Royal Astronomical Society have announced the rediscovery of the earliest moving picture of a total solar eclipse from 1900. The original film fragment held in The Royal Astronomical Society's archive has been painstakingly scanned and restored in 4K by conservation experts at the BFI National Archive, who have reassembled and retimed the film frame by frame. Available now to watch online for free, Solar Eclipse (1900) is part of BFI Player's recently released Victorian Film collection, and viewers are now able to experience this first film of a solar eclipse originally captured over a century ago.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences http://bit.ly/2ww2DjH

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