News World News

Tuesday 20 March 2018

Mars 'was oxygen-rich before Earth'

John von Radowitz

MARS had an oxygen-rich atmosphere more than a billion years before the Earth, scientists believe.

Scientists compared Martian meteorites that have crashed on to the Earth and data from rocks examined by the American space agency, NASA's Spirit rover.

Lead scientist Professor Bernard Wood, from Oxford University, said: "The implication is that Mars had an oxygen-rich atmosphere at a time, about 4,000 million years ago, well before the rise of atmospheric oxygen on Earth around 2,500 million years ago."

Irish Independent

Today's news headlines, directly to your inbox every morning.

Editors Choice

Also in World News