The northern and southern lights, auroras visible from the poles, glow with a range of different colored lights. Here's the reason for each of those colors.

But the most widespread fruit produced and sold in Hong Kong all year round has been the humble banana. A perennial local ...

Staffers of the U.S. Agency for International Development were instructed to stay out of the agency’s Washington headquarters ...

In the coming years, an unprecedented number of people will leave planet Earth—but it’s becoming increasingly clear that deep ...

If nitrogen hypoxia is used, an inmate breathes 100 percent nitrogen, which causes suffocation. Louisiana is one of four states that have approved it for executions.

Demetrius Frazer is set to die by nitrogen gas for the murder of 41-year-old Pauline Brown in Birmingham, Alabama in 1991.

That difficulty was part of the reason Louisiana lawmakers legalized the use of nitrogen gas and the electric chair as ...

Gov. Jeff Landry announced the Louisiana Department of Public Safety and Corrections has implemented protocol to carry out death sentences using nitrogen gas.

An Alabama inmate convicted of murdering a woman after breaking into her apartment as she slept was put to death Thursday evening in the nation's fourth execution using nitrogen gas. Demetrius ...

A federal judge on Friday refused to stop what would be the fourth nitrogen gas execution in the U.S., saying the inmate had not proven his claims that the new method is unconstitutionally cruel ...