Water on an extrasolar planet 11 July 2007 Scientists report the first conclusive discovery of the presence of water vapour in the atmosphere of a planet beyond our Solar System. The discovery was made by analysing the transit of the gas .
How to Learn a Star's True Age For many movie stars, their age is a well-kept secret. In space, the same is true of the actual stars. Like our Sun, most stars look almost the same for most of their lives. .
Alien planets are incredibly common in our own galaxy Milky Way and it may be having as many as 160 billion planets, a six-year-long study has suggested. According to the study, published in the journal Nature, there are over 100 billion .