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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 ...

Candy-pink lagoon serves up salt-rich diet for potential life on Mars

The discovery of a microorganism that gives a candy-pink lagoon in central Spain its startling colour is providing new evidence for how life could survive on a high-salt diet on Mars or Europa. The Laguna de Peña Hueca, part of the Lake Tirez system in La Mancha, has very high concentrations of salt and sulphur and is a good analogue for chloride deposits found in the Southern highlands of Mars and briny water beneath Europa's icy crust. The results of a study of microorganisms found in the lake will be presented at the European Planetary Science Congress (EPSC) 2018 in Berlin by Dr. Felipe Gómez.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences Source

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