New research reveals that hydrothermal vents provided early Earth with abundant nitrogen, challenging previous theories.

Louisiana's protocol says death row inmates will be forced to breathe pure nitrogen through a respirator mask for 15 minutes or for 5 minutes after the inmate's heart rate reaches a flatline on an EKG ...

By identifying nitrogen as the key element, we can better understand Earth's climate-chemistry interactions," said Prof. Yu. ...

Nitrogen is a critical limiting element for plant growth and production. It is a major component of chlorophyll, the most important pigment needed for photosynthesis, as well as amino acids ...