Scientists have just made a major discovery in the solar system, and in particular a dwarf planet that was recently explored by a NASA probe known as the Dawn spacecraft. They have found the building blocks of life on Ceres, adding the tiny cosmic body to the last of possible candidates for life outside of Earth, an exciting discovery that will have big implications in the search for life.

The Dawn spacecraft was first launched a little more than a decade ago, and it arrived at the dwarf planet Vesta in 2011, orbiting for a few months before leaving and heading to Ceres. It arrived in 2015 and began examining the dwarf planet closely, and scientists have just published a new study in the journal Science that shows that there are organic materials native to Ceres, meaning it didn’t come from an outside source like an asteroid or comet.

That, combined with the possibility of internal heat and maybe even a subsurface ocean, and Ceres is suddenly a major candidate for hosting primitive life at one point, and possibly even today.