Home » News & Blogs » The Telescope and the Center Of The Universe
Bookmark and Share
Insight Observatory

The Telescope and the Center Of The Universe

2 Nov 2019, 16:15 UTC
The Telescope and the Center Of The Universe
(200 words excerpt, click title or image to see full post)

In the beginning, there was "us" - and, just us. (So we liked to think) (fast-forward a few hundred thousand years...) Around the Middle Ages, it was discovered that we inhabited a "world" - a round, spherical one. And so now, we and our world were all that there was. But, a little later, in 1610, a physicist named Galileo Galilei, using a new and revolutionary optical instrument called a "telescope", discovered that the moon, Saturn, and Jupiter - were not just dots of light in the sky, but rather, they were, actual, "other" worlds. Not only were Jupiter and Saturn planets, in their own right, but they possessed satellites, as well. Galileo, and then others, noticed that these satellites were orbiting around their host planets - resembling miniature Solar Systems. None of this new and revolutionary information would have been revealed, had it not been for a new and revolutionary instrument - Galileo's hand-made, tiny, 2-inch diameter instrument - the refracting telescope. (This new revelation caused a lot of problems - both, for Galileo, and for society, in general - because, just maybe - there were "others" on these "other worlds") While Galilei did not invent the telescope, he ...

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day