A crucial building block of life exists on the asteroid Ryugu
Uracil, a component of RNA, was found in a sample collected by Japan’s Hayabusa2 spacecraft
![A photo take of the asteroid Ryugu. A light gray circular shape in the center on a deep black background.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/03/032023_ag_ryugu_feat.jpg?fit=1030%2C580&ssl=1)
One of life's crucial building blocks has been identified on the asteroid Ryugu, shown in the photo taken by Japan's spacecraft Hayabusa2.
Hayabusa 2/JAXA