Are we all aliens? NASA's returned asteroid samples hold the ingredients of life from a watery world

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. Scientists published their findings Wednesday. The pair of studies provide the strongest evidence yet that asteroids may have planted the seeds of life on Earth. The findings also indicate that these ingredients were mingling with water almost right from the start. NASA's Osiris-Rex spacecraft returned the samples from Bennu, a near-Earth asteroid, in 2023. It's the biggest cosmic haul from beyond the moon.