A death row inmate in Alabama, Kenneth Eugene Smith, was executed Thursday night by nitrogen hypoxia, a controversial and untested method that has prompted legal pushback and public scrutiny from ...

Add Yahoo as a preferred source to see more of our stories on Google. Alabama was set to carry out the first-ever execution by nitrogen hypoxia on death row inmate Kenneth Eugene Smith on Thursday.

Most organisms require nitrogen to produce biological molecules, such as nucleotides and amino acids, but until recently, only prokaryotes were known to fix nitrogen from the atmosphere. “It’s a very ...

Convulsing and gasping for air, Kenneth Smith appeared to struggle for several minutes before his death Thursda y in an Alabama execution chamber. The details of what appeared to be a drawn-out ...

Soil erosion is widely known for degrading land and reducing agricultural productivity. But new research shows it may also ...

Kenneth Eugene Smith's Alabama execution set for Thursday Alabama is set to carry out the first execution in the United States to use nitrogen gas on Thursday evening, a controversial and untested ...

Gov. Jeff Landry on Tuesday signed into law new methods of execution that can be used in Louisiana for the state’s nearly 60 death row prisoners starting July 1. Electrocution is back in rotation ...

Stephen Smith is a managing editor for CBSNews.com based in New York. A Washington, D.C. native, Steve was previously an editorial producer for the Washington Post, and has also worked in Los Angeles, ...