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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 ...

Spot failed Soviet Venus probe Kosmos 482 in Earth orbit

A ghost from the old Soviet space program may return to Earth in the coming years. Mimicking a campy episode of the '70s series The Six Million Dollar Man, a Soviet Venus lander stranded in Earth orbit will eventually reenter the atmosphere, perhaps as early as late 2019. Fortunately, this isn't the "Venus death probe" that the bionic man Steve Austin had to defeat, but Kosmos 482 is part of a fascinating forgotten era of the Space Age, and one you can track down in the night sky, with a little skill and patience.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences https://ift.tt/2TgnY9W

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