Hints of methane on Mars go back all the way to the Mariner missions of the 1970s. But in 2013, NASA's Curiosity rover saw methane levels around it rise to several times greater than the ...

Hyperbaric oxygen therapy involves exposing the body to 100% oxygen at a pressure that is greater than normal. . Wounds need oxygen to heal properly. Exposing a wound to 100% oxygen may speed healing.

The world's warming tropical wetlands are releasing more methane than ever before, research shows — an alarming sign that the world's climate goals are slipping further out of reach. A massive surge ...

WHETHER A CRIME was even committed is debatable. Nevertheless, on November 19th judges in Hong Kong’s biggest-ever national-security trial sentenced 45 activists to between four and ten years in ...