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Chandra peers into a nurturing cloud

14 July 2017 Astronomy Now

In the context of space, the term ‘cloud’ can mean something rather different from the fluffy white collections of water in the sky or a way to store data or process information. Giant molecular clouds are vast cosmic objects, composed primarily of hydrogen molecules and helium atoms, where new stars and planets are born. These clouds can contain more mass than a million Suns, and stretch across hundreds of light-years.