A group-analysis of 30 Exoplanets orbiting distant stars suggests that size, not mass, is a key factor in whether a planet's Atmosphere can be detected. The largest population-study of exoplanets to date successfully detected atmospheres around 16 'hot Jupiters', and found that water vapour was present in every case. Artist’s impression of exoplanetary system [Credit: Alexaldo]The work by a UCL-led team of European researchers has...

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