In the long view of things, humans don't know much about the universe.
But the universe is so large and so complex that our understanding of it is necessarily limited. This becomes even more apparent when we acknowledge what science in recent times has begun to understand, which is that a great deal of the universe is made up of dark energy and dark matter.
Scientists at the Kavli Foundation recently described images just taken of the Andromeda Galaxy (also known as M 31) by the Suburu Telescope's Hyper-Suprime (not Supreme) Cam (including the image you see here today). They said what the telescope has shown them so far and will show them in the future should help them understand the nature of dark energy and dark matter better.
Which in turn will help them understand why the universe, instead of being in a steady state or collapsing altogether, continues to expand. It's a fascinating mystery.
The cosmos is an enigmatic, beautiful, strange, complex, semi-Rube Goldberg entity that should begin to tell us something about the one the great religions acknowledge as its creator. It's just that the more we learn the more ignorant we feel.
Which you would think might produce some humility, though it rarely seems to.
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THE 'DREAM' SPEECH MADE NECESSARY BY A NIGHTMARE
When you celebrate the "I Have a Dream" speech tomorrow of Martin Luther King Jr., scholars want you to be aware of its sharp critique of American values of the time. Good point.