; table of contents. Sec. 2. Definitions. Title I—Authorization of Appropriations Sec. 101. Fiscal year 2018. Sec. 102. Fiscal year 2019. Title II—Human Exploration Sec. 201. Space facilities beyond low-Earth orbit. Sec. 202. ISS transition. Sec. 203. Human spaceflight research. Sec. 204. Critical path redundancy for human spaceflight. Sec. 205. Space suits. Title III—Science Subtitle A—Earth Science Sec. 301. Reimbursable basis for development of sensors and instruments. Sec. 302. Earth observations study. Sec. 303. Land imaging. Sec. 304. Landsat data policy. Sec. 305. Earth science missions. Sec. 306. Goddard Institute for Space Studies Inspector General report. Subtitle B—Astronomy and Astrophysics Sec. 311. Search for the origin, evolution, distribution, and future of life in the universe. Sec. 312. Wide-Field Infrared Space Telescope. Subtitle C—Planetary Science Sec. 321. Near-Earth Object Survey. Sec. 322. Space nuclear power. Title IV—Aeronautics Sec. 401. Supersonic research. Sec. 402. Unmanned aircraft systems research. Sec. 403. 21st Century Aeronautics Research Capabilities Initiative. Sec. 404. Experimental plane program. Sec. 405. Hypersonic Technology project. Title V—Commercial Sec. 501. Commercial supply of space products. Sec. 502. Commercial provision of services. Sec. 503. Commercial in-space infrastructure. Sec. 504. Preference for launch vehicles manufactured in the United States. Sec. 505. Studies on industrial base. Sec. 506. Spectrum coordination. Sec. 507. Enhanced-use leasing. Sec. 508. Satellite servicing technologies. Title VI—Policy Sec. 601. NASA-funded institutes. Sec. 602. Baseline and cost controls. Sec. 603. Reports to Congress. Sec. 604. International technical and operational standards. Sec. 605. NASA contractor responsibility watch list. Sec. 606. Human space exploration risk. 2. Definitions In this Act: (1) Administrator The term Administrator means the Administrator of NASA. (2) Cis-lunar space The term cis-lunar space means the region of space from the Earth out to and