ScienceMountain-size comet to fly by Mars on Oct. 19: NASA is ready Comet Siding Spring will fly by Mars at a proximity less than half the distance between the Earth and the moon. The comet is believed to carry with it remnants from the formation of the solar system.by Rhodi Lee
ScienceNASA invests $50 million in 7 astrobiology research groups to answer all-important question: Are we alone in the universe?by Rhodi Lee
ScienceU.S., India space agencies sign agreement as partners in exploration of Mars and Earthby Sumit Passary
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