By Julian Siddle
Science Reporter, BBC News
Scientists say they have found evidence for water vapour in the atmosphere of a planet 63 light-years from Earth.
The "hot Jupiter" planet's surface temperatures exceed 900C.
Writing in the journal Nature, the scientists say their discovery may help find planets that can support life.
In a separate study, the US space agency (Nasa) says it has found carbon dioxide in the atmosphere of the same planet.
Molten core
The planet known as HD 189733b is classed as a hot Jupiter due to its fiery molten centre and heavily gaseous atmosphere, which mimics the atmosphere of Jupiter, the gas giant in our own galaxy.
***
more:
http://news.bbc.co.uk/2/hi/science/nature/7775471.stm