Scientists working on how life began on Earth are taking a step closer to answering that question with some help from cosmic dust. The most unlikely method, however, would have you recreate star dust in a lab - just that.
Researchers at the University of Sydney were inspired by the idea to create similar cosmic dust in their laboratory using a vacuum tube and a mixture of nitrogen, carbon dioxide, and acetylene gases. This process created a type of plasma, or fourth state of matter, which is believed to be present around giant dying stars.
These scientists are working towards understanding the origins of life on Earth by studying meteorites that contain organic compounds, such as those in CHON molecules. The question remains whether these compounds were formed locally on Earth, arrived later as particles from comets and asteroids, or were delivered during the early stages of our solar system forming.
In their lab experiment, Losurdo was able to recreate a unique infrared fingerprint, similar to that found in meteorite samples. This fingerprint revealed its chemical structure and could provide clues about how these compounds formed.
Dr Sara Webb from Swinburne University praised Losurdo's work as "a really beautiful method" for producing something similar to interstellar dust. The possibility of using simulated cosmic dust in other experiments is also an exciting prospect, particularly for simulating early life formation on different types of planets.
The key advantage of recreating cosmic dust in a lab was the ability to apply unique conditions, such as high voltages and controlled environments, that are difficult to replicate in nature. Losurdo emphasized that this recreated dust may not represent every single environment in the universe but rather take a "snapshot" of something physically plausible.
The publication of this research provides new insights into how life began on Earth by studying meteorites containing CHON molecules.
Researchers at the University of Sydney were inspired by the idea to create similar cosmic dust in their laboratory using a vacuum tube and a mixture of nitrogen, carbon dioxide, and acetylene gases. This process created a type of plasma, or fourth state of matter, which is believed to be present around giant dying stars.
These scientists are working towards understanding the origins of life on Earth by studying meteorites that contain organic compounds, such as those in CHON molecules. The question remains whether these compounds were formed locally on Earth, arrived later as particles from comets and asteroids, or were delivered during the early stages of our solar system forming.
In their lab experiment, Losurdo was able to recreate a unique infrared fingerprint, similar to that found in meteorite samples. This fingerprint revealed its chemical structure and could provide clues about how these compounds formed.
Dr Sara Webb from Swinburne University praised Losurdo's work as "a really beautiful method" for producing something similar to interstellar dust. The possibility of using simulated cosmic dust in other experiments is also an exciting prospect, particularly for simulating early life formation on different types of planets.
The key advantage of recreating cosmic dust in a lab was the ability to apply unique conditions, such as high voltages and controlled environments, that are difficult to replicate in nature. Losurdo emphasized that this recreated dust may not represent every single environment in the universe but rather take a "snapshot" of something physically plausible.
The publication of this research provides new insights into how life began on Earth by studying meteorites containing CHON molecules.