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How Fast the Light Speed from Nasa

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 Astronomy   |   Physics   |   Science
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Simple Animations by a NASA Scientist 'Prove' The Speed of Light Is Torturously Slow
Don't thinking the speed of light really fast. In earth yes, but cosmic ?

A series of new animations by a NASA scientist show just how zippy – and also how torturously slow – the speed of light can be.

Light speed is the fastest that any material object can travel through space. That is, of course, barring the existence of theoretical shortcuts in the fabric of space called wormholes (and the ability to go through them without being destroyed).
In a perfectly empty vacuum, a particle of light, which is called a photon, can travel 186,282 miles per second (299,792 kilometers per second), or about 670.6 million mph (1.079 billion kilometers per hour).

This is incredibly fast. However, light speed can be frustratingly slow if you're trying to communicate with or reach other planets, especially any worlds beyond our solar system.

To depict the speed limit of the cosmos in a way anyone could understand, James O'Donoghue, a planetary scientist at NASA's Goddard Space Flight Center, took it upon himself to animate it.

The situation gets downright depressing when you start looking outside the solar system. The closest-known exoplanet, called Proxima b, is about 4.2 light-years away from us (a distance of about 24.7 trillion miles or 39.7 trillion kilometers).

Go to Andromeda... hemm
See also channel James O Donoghue
https://www.youtube.com/user/jayphys85

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