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Did the building blocks of DNA originate in outer space
Description
Scientists have recently discovered all five nucleobases that make up the nucleic acids DNA and RNA within meteorites. This finding suggests the possibility that some of the essential components for life may have originated in space. The discovery raises fascinating questions regarding the chemical conditions of the early solar system and the mechanisms by which complex organic materials arrived on a young Earth.
Original title
האם אבני הבניין של ה-DNA מקורן בחלל החיצון?
מדענים גילו לאחרונה בתוך מטאוריטים את כל חמשת הבסיסים החנקניים המרכיבים את חומצות הגרעין DNA ו-RNA, ממצא המצביע על אפשרות שמקור חלק מהרכיבים החיוניים לחיים הוא בחלל. התגלית מעלה שאלות מרתקות לגבי התנאים הכימיים במערכת השמש המוקדמת והאופן שבו הגיעו חומרים אורגניים מורכבים אל כדור הארץ הצעיר.
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