گرد و غبار سیارک ریوگو غلظت آهسته نیتروژن را در مولکول های پیچیده نشان می دهد

Asteroid Ryugu's dust reveals nitrogen's slow concentration into complex molecules

Nitrogen is a key ingredient in the biomolecules that form the building blocks of life. Yet as an unbonded gas, it is far more likely to drift into space than to lock itself into solid compounds, making it difficult for astronomers to trace its journey to Earth in the distant past.