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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 ...

Indian scientists make deepest radio images of the sun

The sun is the brightest object in the sky, and probably the most studied celestial object. Surprisingly, it still hosts mysteries that scientists have been trying to unravel for decades, for example, the origin of coronal mass ejections which can potentially affect the Earth. Led by Dr. Divya Oberoi and his Ph.D. students, Atul Mohan and Surajit Mondal, a team of scientists at the National Centre for Radio Astrophysics (NCRA), Pune, India, have been leading an international group of researchers to understand some of these mysteries. The sun has some of the most powerful explosions in the solar system. Their possible impacts on Earth include electric blackouts, satellite damage, disruption of GPS based navigation, and other sensitive systems. Hence, it is becoming increasingly important to understand and predict space weather reliably.

from Astronomy News - Space News, Exploration News, Earth Science News, Earth Science http://bit.ly/2DfMy5J

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