These meteorites contain all of the building blocks of DNA

🌠 Our DNA Might Be Older Than Earth For the first time ever, scientists have found all five genetic “letters” — adenine, guanine, cytosine, thymine, and uracil — inside meteorites , the basic building blocks of human DNA. 🧬 These aren’t just random space rocks. They’re 4.5-billion-year-old messengers, carrying the same molecules that build every cell, every plant, and every human being. A groundbreaking study (Hokkaido University, Nature Communications, April 2022) confirmed it using new, ultr