The air we breathe is a mixture of different gases made up of 78.1% (by volume) nitrogen, 21% oxygen, 0.9% argon, and 0.04% carbon dioxide. Oxygen is the most abundant gas in the atmosphere, essential ...

Texans have a complicated relationship with rattlesnakes. They’re beautiful, venomous and frightening. And for people who work the land, they have always represented a mortal peril. A century ago, the ...

Poisonous gasses are leaking in some Texas communities, and residents are desperately trying to get help, but to no avail. The latest investigative report from the Houston Chronicle, in partnership ...

The mother of an Israeli hostage who died in Gaza has accused the Israeli military of killing her son by pumping poison gas into a tunnel where he was being held. In December, Dr. Maayan Sherman said ...