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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 ...

About Life and planet Venus

Life Could Make Habitable Pockets in Venus' Atmosphere

Once again, astronomers are excited about the possibility that there could be life in the atmosphere of Venus. A new study suggests that various atmospheric anomalies could be caused by the presence of ammonia. In the harsh environment of Venus' atmosphere, ammonia shouldn't naturally exist. So it could be possible that bacteria are generating it, making hostile regions of the atmosphere a little more hospitable for their survival. Of course, we won't know until we send a mission to sample the atmosphere directly.

Read the full story by Scott Alan Johnston

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