Saturday, May 13, 2017

How small are we in the scale of the universe?

When I was young, one of my favourite pastimes was to lay out on the grass and watch the milky way float by. I always wondered if we were alone, and many of us share that question. In addition, I wondered how our earth and sun fit into the giant or big picture. Here is an interesting TED talk that explores that question.

In 1995, scientists pointed the Hubble Telescope at an area of the sky near the Big Dipper. The location was apparently empty, and the whole endeavour was risky – what, if anything, was going to show up? But what came back was nothing short of spectacular: an image of over 1,500 galaxies glimmering in a tiny sliver of the universe. Alex Hofeldt helps us understand the scale of this image

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