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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 ...

A layer of 'aerogel' could make Mars habitable and even enable life to develop there

Transforming the red planet to support life has long been a dream of science fiction. Mars is now too cold to support life. Its atmosphere is also too thin to protect any living organisms from harmful radiation. But a new study suggests that local conditions could be changed using an inch of "aerogel"—a synthetic and ultralight material made by taking a gel and replacing the liquid component with a gas.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences https://ift.tt/2kaoD16

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