http://www.newsweek.com/blue-origin-sues-nasa-human-landing-system-contract-jeff-bezos-spacex-timeline-moon-lander-1619998 > Blue Origin, the space company owned by Amazon founder Jeff Bezos, has launched a legal challenge against NASA after the federal space agency chose rival firm SpaceX to take part in its upcoming moon missions. > Blue Origin has complained about NASA's decision for months, after the agency granted SpaceX a $2.9 billion contract to develop a system that will land humans on the moon for the first time in decades. This could happen as soon as 2024.