Astronomy’s awakening: This Week in Astronomy with Dave Eicher

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From our earliest ancestors to astrology and finally to modern science, people have always looked to the sky.

From our early ancestors on the African plains to astrology and finally to modern science, people have always looked to the sky. It’s easy to guess that. Sahelanthropus chadensisIt is thought that our early hominin ancestors looked up at night about 7 million years ago and were surprised by the bright bands and milky nature of the clouds they saw in the sky.

Since those beginnings, our ways of seeing and understanding the shiny objects that hang above us have evolved greatly. Ancient cultures around the world Carefully recorded They became intimately aware of the movements of the stars and planets and their relationships, using them to keep time, navigate, and make sense of the world.

The telescope was patented in 1608 by Dutch eyeglass maker Hans Lipperschey and invented by others around the same time. and the English observer Thomas Harriot. He was the first (that we know of) to map what he observed by pointing a telescope at the moon. But it was Galileo Galilei In the year On November 30, 1609, he turned his telescope to the sky in Padua and published what he saw: the nature of the moon, the phases of Venus and the orbits of Jupiter’s moons around the host planet. This set the stage for a scientific revolution and ushered in a new era of deep sky telescopic observation.

The next great technological advance in the history of astronomy came in the 1860s with the advent of spectroscopy, which allowed astronomers to break light into its wavelengths and for the first time to determine what chemicals were present in stars. The name of the element helium – the second most abundant in the universe – is derived from the Greek HeliosFor the Sun, because it was first detected in the spectrum of our star, 93 million miles (150 million kilometers) away.

Today, we will understand some of them That star thing is within us.we are beginning to understand the fate of the cosmos, and the advances and limitations of technology. Advancing astronomy Show no sign of slowing down.

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