Scientists found 11 minerals in Bennu samples, including calcite, halite, and sylvite, that form when water with dissolved salts evaporates over time, leaving solid crystals. Similar brines have been detected on Ceres and Enceladus.

The sample analysis detected 14 out of the 20 amino acids used by life on Earth to create proteins, as well as all five nucleobases essential

The building blocks for life, including salts, organic matter and amino acids have been found in samples returned to Earth from outer space.

"The detection of these key building blocks of life in the Bennu samples supports the theory that asteroids and their fragments seeded the early Earth with the raw ingredients that led to the emergence of life," said astrobiologist Dr Danny Glavin of NASA's Goddard Space Flight Center in Maryland, lead author of one of the studies.

The study of asteroid samples is a highly lucrative area of research and one of the best ways to determine how the Solar System came to be. Given that asteroids are leftover material from the formation of the Solar System,

NASA’s Bennu asteroid sample provides fresh insights into the potential for life beyond Earth, revealing key organic compounds and minerals.

Samples from asteroid Bennu have delivered insights into the origins of Earth’s water and the organic molecules that may have seeded life.

Bennu, it seems, was born of a salty planetoid rife with the ingredients for life. Bennu as it exists today is essentially a rubble pile floating through space, the remains of an ancient collision between two larger objects.

Japanese scientists detected all five nucleobases — building blocks of DNA and RNA — in samples returned from asteroid Bennu by NASA’s OSIRIS-REx mission. NASA’s OSIRIS-REx mission brought back 121.6 grams of asteroid Bennu,

Studies of asteroid Bennu delivered to Earth by NASA’s OSIRIS-REx spacecraft have revealed molecules that, on our planet, are key to life.

Asteroid Bennu’s dust reveals amino acid precursors and ancient water traces, fueling hopes that Saturn’s moon Enceladus and other icy worlds might harbor life.