When we look up at the moonless, cloudless night sky, far away from city lights, we may see as many as 5,000 stars. These distant dots of light may seem eternal, but this illusion is merely an effect of our momentary, fleeting lives in the Cosmos. Like humans, stars are born, live, and die.
Most stars are found within local families called galaxies. Our own Milky Way is thought to contain somewhere around 400 billion stars. And there may be a trillion galaxies spread throughout the Cosmos...
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The Cosmic Companion - Astronomy, Space, Technology Advancing Humanity