NASA's OSIRIS-REx mission successfully returned a generous chunk of the asteroid Bennu to Earth in 2023, and scientists have been analyzing it ever since. International scientific teams have published a pair of studies this week highlighting the incredible assortment of materials found in the sample.

Samples of Bennu were brought back to Earth by NASA’s OSIRIS-REx spacecraft in 2023. Now, a pair of newly published papers reveal that the samples contain precursors to life that formed in a watery environment—a watery environment very similar to the one that prevailed on Earth before life emerged up to four billion years ago.