With the help of a three-dimensional map of stars near the sun, astronomers can search for alien planets that might hold life. The map was created by NASA's Chandra X-ray space telescope, which has ...
A few thousand years ago it was also our planet’s North Star, until Polaris took its place as Earth’s axis wobbled. (Vega is set to reclaim the North Star crown in 12,000 years). As such ...