A NASA spacecraft has returned asteroid samples that hold not only the pristine building blocks for life but also the salty remains of an ancient water world.

This mineral-rich asteroid might have carried the seeds of life. Planetary scientists have discovered organic matter essential to life in dust and rock retrieved from an asteroid known as Bennu. The finding supports the theory that near-Earth asteroids,

The latest discovery, unveiled by the NASA on January 29, came as a bit of a surprise and posed many exciting questions such as “Why didn’t life form on Bennu?”