John Grunsfeld has a model of the Hubble Space Telescope on his bookshelf. It's right next to a model of a NASA space shuttle, which delivered Hubble to space 35 years ago, and it's no secret why both ...

NASA is making final preparations for its first spacewalk since January. It’ll also be the first all-female spacewalk since ...

Riley Nuttycombe, a senior at Boulder’s New Vista High School, had the opportunity to experience what it might be like to ...