solar system

(Newser) - When the Sun begins to kick out in some 5 billion years, it might not take Earth with it, reports the New York Times. Scientists are more optimistic since discovering a planet that survived a similar situation. A lack of hydrogen fuel is expected to cause the Sun to expand...

(Newser) - Astronomers who've spotted 28 new planets in the past year are gaining confidence that other solar systems may be able to support life like ours. One researcher estimated that there are probably "tens of billions" of planets with habitable conditions, most important of which is hospitality to water.