Scientists have discovered all four DNA bases on an asteroid called Ryugu, adding to previous findings of these bases in space. This discovery is significant because it helps solve the mystery of why earlier studies didn’t find them on Ryugu, even though they were found on other asteroids. Understanding how these DNA bases got to asteroids is important because it might explain how the building blocks of life arrived on Earth. DNA and RNA, which carry genetic information, are made up of these bases, making them crucial for life. The research highlights the success of searching for these bases beyond Earth, with discoveries dating back to 2011. This ongoing research could provide insights into the origins of life on our planet.
QUESTION: How might discovering DNA bases on asteroids change our understanding of where life on Earth came from?
We keep finding the raw material of DNA in asteroids—what’s it telling us?
