スペース・ローンチ・システム
In the 2010s, major shifts in directives include the retirement of the Space Shuttle, and the later development of a new crewed heavy-lift rocket, the Space Launch System. Missions for the new Space Launch System have varied, but overall, NASA's directives are similar to the Space Shuttle program as the primary goal and desire is human spaceflight. Additionally, NASA's Space Exploration Initiative of the 1980s opened new avenues of exploration focused on other galaxies.