BBC News | In Depth | Race for Mars | UK EditionVisit BBC News for up-to-the-minute news, breaking news, video, audio and feature stories. BBC News provides trusted World and UK news as well as local and regional perspectives. Also entertainment, business, science, technology and health news.Martian gases pose life question- February 25, 2005 A Mars science conference is told methane and formaldehyde together in the planet's atmosphere could indicate present-day life.http://news.bbc.co.uk/go/rss/-/1/hi/sci/tech/4295475.stm |