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But now, these building blocks have been found on asteroid samples, not contaminated by Earth. And it's asteroid, it's asteroid Bennu. And it is an object that has barely changed the birth of our solar system. Our solar system came into existence, I should say into existence, but it coalesced into what it is now. It started about 4.6 billion years ago. In 2020, there was a NASA spacecraft. It landed on its surface. And this was as Bennu swung past Earth. And it was collecting samples. And they finally returned these samples back to Earth.