ScienceU.S., India space agencies sign agreement as partners in exploration of Mars and Earth U.S. and India's space agencies sign a charter for future Earth and Mars exploration missions. The space agencies will work together in the NISAR mission, which is targeted for a 2020 launch.by Sumit Passary
ScienceSierra Nevada Corp. challenges NASA-Boeing/SpaceX $6.8 billion space taxi deal: Source selection process smack of 'inconsistencies'by Rhodi Lee
ScienceMars rover Curiosity drills into Mount Sharp to collect samples and finds mysterious 'ball'by Rhodi Lee
ScienceMaven, Mangalyaan celebrate Mars orbit entry by sending back first photos of Red Planetby Rhodi Lee
CultureSpace buddies? NASA's Mars rover Curiosity tweets hello to India's Mangalyaan probeby Jan Dizon