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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 ...

Did key building blocks for life come from deep space?

All living beings need cells and energy to replicate. Without these fundamental building blocks, living organisms could not exist. Little was known about a key element in the building blocks, phosphates, until now. Researchers have now provide compelling new evidence that this component for life was generated in outer space and delivered to Earth in its first one billion years by meteorites or comets.

from Cosmology News -- ScienceDaily https://ift.tt/2xHX4zO

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