Kilometers above the Earth’s surface, the ozone layer protects humanity and all life from the sun’s harmful ultraviolet rays. But in the troposphere, at ground level, this gas can wreak havoc on ...

People in the area were admitted to a local hospital after they complained of breathing problems, heaviness in chest and ...

So why do so many life-forms breathe oxygen? There are probably thousands of kinds of metabolisms, or chemical processes that ...

Researchers develop a nickel catalyst that converts carbon dioxide to carbon monoxide with 99% selectivity by precisely ...

New research suggests “microlightning” exchanges among water droplets in Earth’s early atmosphere may have sparked the ...

Death row inmate Jessie Hoffman was convicted of the brutal rape and murder of 28-year-old Molly Elliott in 1996. He had kidnapped her in New Orleans after she got off work. Hoffman has been ...

Throughout history, states have used five different execution methods: lethal injection, electrocution, lethal gas, firing squad and hanging. Lethal injection is the preferred method, but it is ...

The first execution using nitrogen gas was carried out in the US state of Louisiana. According to American media, 46-year-old prisoner Jesse Hoffman was executed after the Supreme Court overturned a ...