Scientists Find a New Way to Create Big Molecules in Space

Topic: Space

A team of researchers led by the University of Hawaiʻi at Mānoa has discovered a faster way for large carbon-based molecules to form in space. They found a new chemical process that can explain how these complex molecules are created quickly.

A team of scientists from the University of Hawaiʻi at Mānoa has made an exciting discovery about how big molecules are formed in space. These molecules, called polycyclic aromatic hydrocarbons (PAHs), are found everywhere in the universe, from dying stars to clouds of gas between stars.

The researchers led by Shane Goettl, a chemistry graduate student, used laboratory experiments to recreate the extremely high temperatures found around aging stars and other energetic environments in space. They discovered that a new chemical reaction can build these complex molecules much faster than previously thought.

This process is different from how scientists thought PAHs were formed before. Instead of adding carbon atoms one at a time, this new reaction allows several new chemical bonds to form in a single step. This speeds up the growth of larger molecules. The research team demonstrated that this new process can create several large PAHs that were difficult to explain using older models. The discovery could improve our understanding of how carbon evolves in the universe and how complex molecules are created.

The researchers worked with colleagues from Taiwan and France, using a powerful synchrotron facility called SOLEIL in France.

Why It Matters

This discovery is important because it helps us understand how the building blocks of our universe are formed. It also shows us that there may be more efficient ways to create complex molecules, which could have implications for many fields, including space exploration and materials science.

Key Facts

• A team of researchers from the University of Hawaiʻi at Mānoa discovered a new way for large carbon-based molecules to form in space.
• The discovery was published in Nature Communications in August 2026.
• Polycyclic aromatic hydrocarbons (PAHs) are complex molecules found everywhere in the universe, from dying stars to clouds of gas between stars.
• The new chemical reaction allows several new chemical bonds to form in a single step, speeding up the growth of larger molecules.
• The research team worked with colleagues from Taiwan and France, using a powerful synchrotron facility called SOLEIL in France.

Key Terms

Polycyclic aromatic hydrocarbons (PAHs)

Complex molecules made of carbon and hydrogen found everywhere in the universe.

Synchrotron facility

A powerful machine that uses high-energy electrons to study materials at the atomic level.

Astrophysical conditions

The extreme temperatures and environments found around stars, planets, and other celestial objects in space.

Implications

This discovery is important because it helps us understand how the building blocks of our universe are formed. It also shows us that there may be more efficient ways to create complex molecules, which could have implications for many fields, including space exploration and materials science.