Louisiana plans to use nitrogen gas to execute death row inmate Jessie Hoffman next week. Here's what to know about the ...

Now, Zare and his colleagues have sprayed droplets of water into a mix of methane, carbon dioxide, ammonia and nitrogen gas – and have shown it can result in the formation of organic molecules with ...

Louisiana is scheduled to use nitrogen gas in an execution for the first time tonight. Here's what to know ahead of the expected execution of Jessie Hoffman, Jr., age 46. Louisiana state law ...

While the presence of these molecules is not proof of ancient life on Mars, scientists say it shows we could detect chemical ...