Astronomy is the purest of science that I can think of. Shown above is an artist’s rendition of what is to be, at least briefly, the world’s largest telescope in Hawaii. It has a segmented mirror system and will be 9 times more powerful than anything before it. It gives me hope for our species that despite all our failings, we have somehow found the will to spend a billion dollars just to seek the meaning of it all.
I have just seen a marvelous video clip on astronomy that I’d like to share with you. It shows in beautiful motion something that would have been unimaginable only one lifetime ago, the structure of the universe and how it moves. Words fail me, but the clip says it all.
It was only 85 years ago that Edwin Hubble postulated his Hubble constant and confirmed that the universe was expanding, but at that time no one dreamed that space was anywhere as vast as we now know it is. At that time it was thought that the Milky Way constituted all the stars and that nebulae were clouds of gas, not other galaxies and systems of galaxies. Now we know, not only of those galaxies but that clusters of them have structure. This is only 4 beautiful minutes long.