How cosmic rays help us understand the universe - Veronica Bindi
View full lesson: http://ed.ted.com/lessons/how-cosmic-rays-help-us-understand-the-universe-veronica-bindi We only know 4% of what the universe is made up of. Can we also know what lies beyond...
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How much can we really know about the universe beyond our galaxy? The Hubble Telescope has enabled us to see objects in space as far 13,000,000,000 light years away. But this still doesn't give us the answers to all our questions, questions like, "What is the universe made of?" "Which elements are the most abundant?" "Does space contain undiscovered forms of matter?" "Could there be antimatter stars or galaxies?" Some of these questions cannot be answered solely from visual images, but what if we had messengers bringing us physical data from distant parts of the cosmos, beyond the reach of explorers or satellites? In a way, we do, and these "space messengers" are called cosmic rays. Cosmic rays...
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How much can we really know about the universe beyond our galaxy? The Hubble Telescope has enabled us to see objects in space as far 13,000,000,000 light years away. But this still doesn't give us the answers to all our questions, questions like, "What is the universe made of?" "Which elements are the most abundant?" "Does space contain undiscovered forms of matter?" "Could there be antimatter stars or galaxies?" Some of these questions cannot be answered solely from visual images, but what if we had messengers bringing us physical data from distant parts of the cosmos, beyond the reach of explorers or satellites? In a way, we do, and these "space messengers" are called cosmic rays. Cosmic rays...
