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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 ...

SpaceX and CO2

SpaceX is Hoping to Turn Atmospheric CO2 Into Rocket Fuel

SpaceX is still building and testing its Starship prototypes, and we could see them fly to orbit in 2022. Each rocket is enormous and contains a huge volume of methane fuel for propellant that'll add tonnes of carbon dioxide into the atmosphere with each launch. Elon Musk recently announced that SpaceX would attempt to use a chemical process to extract carbon dioxide out of the atmosphere and use this to manufacture methane at the rocket launch site. Although the process works, nobody's ever tried making it at this scale.

Read the full story by Matt Williams



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