Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Is there a 'second Earth' 41 light years away? planetary system that may contain life has been found in orbit around a Sunlike star 41 light years from Earth - or 240,906,832,298,136 miles. Nasa announced that for the first time five planets, all of them huge, have been found in orbit around a star known as 55 Cancri. 55 Cancri, in the constellation Cancer, has been under study for nearly two decades but only now has positive evidence of the planets been determined. 55 Cancri, in the constellation Cancer, has been under study for nearly two decades but only now has positive evidence of the planets been determined. What the solar system is like? • The innermost planet is about the size of Neptune and circles the parent star in less than three days at a distance of about 3.5million miles. • The farthest-out planet is four times as massive as Jupiter and takes 14 Earth years to orbit at a distance of about 539million miles - a little further out than our solar system's Jupiter. Planets in between are in the range of Jupiter and Saturn. • The fourth one out, about 72.5million miles from the parent star, is in an orbit similar to Venus's. But 55 Cancri is slightly fainter and less hot than our own sun, putting the star in a habitable zone that will allow water to remain liquid on a rocky surface. We are not alone! • "There are likely to be billions more such systems waiting to be found. There could be 20billion planetary systems in the Milky Way alone." For further information visit: • http://www.dailymail.co.uk/pages/live/articl es/technology/technology.html?in_article_id =492176&in_page_id=1965