All forms of Earth life have specific chemicals in their makeup, such as amino acids and sugars. Scientists have known that asteroids hold molecules believed to be the precursors to these chemicals. By studying the Bennu samples, they hope to gain more insight into how these ingredients could have evolved.
There are 20 amino acids that create the proteins required for life on our planet — and scientists have now found exactly 14 of them on an asteroid millions of miles away. The asteroid in question, named Bennu, was the focus of a very dreamy NASA mission called OSIRIS-REx that launched in 2016.
The pristine nature of the Bennu samples is crucial. Daniel Glavin of NASA noted, “The clues we’re finding are incredibly fragile and could never survive Earth’s contamination.” This ensures that the organic molecules detected are genuinely extraterrestrial, not contaminants from Earth.
Samples returned from an asteroid contain a surprising abundance of the basic ingredients of life. They were discovered to be rich in carbon, nitrogen and ammonia, with over 30 kinds of amino acids and the five nucleobases found in RNA and DNA. 1 The asteroid, Bennu, was targeted by a Nasa mission that returned a capsule to Earth in September 2023.
Scientists from NASA and other institutions who have been analyzing the Bennu asteroid sample that returned to Earth last September found molecules, including amino acids, which are essential ingredients of life as we know it.
NASA's OSIRIS-REx mission successfully returned samples from asteroid Bennu, revealing 14 of the 20 essential amino acids for life on Earth, along with ammonia and nucleobases crucial for DNA and RNA.
Samples of asteroid Bennu contain molecules that suggest the "conditions necessary for life" were widespread across the early solar system, according to NASA.
Studies of asteroid Bennu delivered to Earth by NASA’s OSIRIS-REx spacecraft have revealed molecules that, on our planet, are key to life.
The building blocks for life, including salts, organic matter and amino acids have been found in samples returned to Earth from outer space.
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?”
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,