Oxygen molecules “confirmed” in space
Aug. 2, 2011
Courtesy of NASA
and World Science staff
Astronomers say they have confirmed for the first time that there are oxygen molecules in outer space. But how they got there is not so certain.
Individual oxygen atoms are common in space, but it has proven far harder to find oxygen in molecular form, as it exists in the air we breathe. Molecular oxygen consists of two oxygen atoms joined together and makes up about 20 percent of the air.