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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 ...

Newly discovered supernova may rewrite exploding star origin theories

A supernova discovered by an international group of astronomers has provided an unprecedented look at the first moments of a violent stellar explosion. The team, led by the University of Hawaiʻi (UH) Institute for Astronomy's (IfA) Ben Shappee and Carnegie Observatories' Tom Holoien, found a mysterious signature in the light from the explosion's first hours. Their findings are published in a trio of papers in the Astrophysical Journal.

from Astronomy News - Space News, Exploration News, Earth Science News, Earth Science https://ift.tt/2SlRxGS

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