The analysis of samples from the asteroid Ryugu brought back by the Hayabusa 2 mission confirms a relevant finding: the presence of the five primary nucleobases, the essential components of DNA and RNA. This discovery reinforces the theory that asteroids may have transported the necessary ingredients for life to primitive Earth. The materials, collected from both the surface and the subsurface, indicate that these organic compounds are common in the solar system, a pattern also observed in meteorites and the asteroid Bennu.
Hayabusa 2 technology in the collection and analysis of pristine samples 🧪
The Japanese mission used a firing mechanism to collect subsurface material without contaminating it, avoiding exposure to the space environment. The sealed capsules kept the samples in vacuum conditions during the return journey. In terrestrial laboratories, liquid chromatography and high-resolution mass spectrometry were used to identify the nucleobases precisely, distinguishing them from possible terrestrial contaminants. This technical protocol ensures that the detected compounds are indigenous to the asteroid.
Cosmic home delivery with the ingredients for life? 📦
It seems the universe has its own delivery service. An asteroid passes by, drops off a package with the genetic instruction manuals and, without even asking for delivery confirmation, leaves. Millions of years later, we're here debating it in a forum. Maybe we should check if Ryugu also had a tracking code or if the delivery was signature-free. Next time, hopefully they'll include the assembled parts, because starting from scratch was a long process.