... Tonight's Sky . ... Star Atlas . ... stars . ... Sky Guide . ... Hubble pins down age of oldest known star . ... A team of astronomers using NASAт??s Hubble Space Telescope has taken an important step closer to finding the birth certificate of a star thatт??s been around for a long time. т??We have found that this is the oldest known star with a well-determined age,т?? said Howard Bond of Pennsylvania State University in University Park and the Space Telescope Science Institute in Baltimore,...