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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 ...

Mix master: Modeling magnetic reconnection in partially ionized plasma

Many of the most dramatic events in the solar system -- the spectacle of the Northern Lights, the explosiveness of solar flares, and the destructive impact of geomagnetic storms that can disrupt communication and electrical grids on Earth -- are driven in part by a common phenomenon: fast magnetic reconnection. In this process the magnetic field lines in plasma -- the gas-like state of matter consisting of free electrons and atomic nuclei, or ions -- tear, come back together and release large amounts of energy.

from Nebulae News -- ScienceDaily https://ift.tt/2N2dV7o

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