A Mind-melting Number of Galaxies in the Universe

My Comments: Now that Matthew has taken his wind and rain to bother someone else, I can focus my time and energy on less earth-shattering thoughts. I  am very thankful we were spared what happened in Haiti; I can’t imagine the agony those people are living with.

And speaking of not being able to imagine, this post is about the world out there that I’ve been interested in for decades. Perhaps because there is no rational answer to the mystery.

I’ve included the first few paragraphs and hopefully a .gif that if you watch the few seconds shown, will make your understanding of our role in this whole exercise we call life a little clearer. My take is that since I have but a few years left, I better make the most of it.

7 OCT 2016

Of the thousands of photos taken by the Hubble Space Telescope, one stands out as the shot that changed astronomy forever. Called the 1995 Hubble Deep Field, it captures thousands of galaxies in a single shot, and was the first photo of its kind ever taken.

But if all those dots represent entire galaxies – and the Milky Way alone is a whopping 100,000 light-years across – how gigantic must a photo be to fit thousands of them in?

Well, it depends on how you define gigantic.

If you’re comparing it to a selfie, it’s pretty freaking huge. But if you’re comparing it to the Universe itself, even a cluster of thousands of galaxies – each hundreds of thousands of light-years across – is minuscule.

More than a decade ago, astronomers at NASA made the incredibly controversial decision to point the Hubble Space Telescope at nothing in particular for a while.

Fortunately, that expensive gamble paid off, and we now have an entire series of Deep Field photos showing so many galaxies in the one shot, they look like stars.

Each of these Deep Field photos were taken over a period of 10 days, and had exposure times of more than 100 hours.

Read more HERE!

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