A new discovery shows that life's blueprints may have generated in asteroids and played a part in how life on Earth came to be.
A NASA rendering of its asteroid probe. Image source: NASA/Goddard/University of Arizona
DNA and RNA contain five informational components, which we call nucleobases. Previously, scientists had discovered three of those five nucleobases on the remains of asteroids or meteorites. Since then, many have scoured other extraterrestrial samples in search of those missing two. Finding life’s blueprint in the remains of meteorites has raised even more questions, though. There are already some beliefs that solar wind helped play a part in creating life on Earth. That’s because the wind would have sent important chemicals crashing into asteroids.with life’s blueprint could have smashed into each other. This would have created several meteoroids capable of carrying those components to Earth, and even to other planets.
All this really does is keep adding pieces to the puzzle. Now that we know that these crucial components could have come from asteroids, we can add that to our models for how the origins of life began. It’s a huge step forward, and one that scientists hope we’ll continue to unravel the mysteries around.will return in the next year. This should give scientists a treasure trove of data to analyze from the asteroid Bennu.
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