NASA ScienceNASA's Science Mission Directorate conducts scientific exploration that is enabled by access to space. We project humankind's vantage point into space with observatories in Earth orbit and deep space, spacecraft visiting the Moon and other planetary bodies, and robotic landers, rovers, and sample return missions. From space, in space, and about space, NASA's science vision encompasses questions as practical as hurricane formation, as enticing as the prospect of lunar resources, and as profound as the origin of the Universe. To ensure the success of the space program through generations to come, we must have simple, but compelling, long-term goals and a coherent, thoughtful plans to achieve them.