The U.S. House of Representatives just released its draft of the NASA Authorization Act of 2020, which would re-organize NASA's human spaceflight program, narrow and delay lunar exploration goals, and prioritize the effort to send humans to Mars by the early 2030s. The legislation stands in contrast to the Trump Administration's current policy of returning astronauts to the lunar surface by 2024 and establishing a broad, sustained lunar presence thereafter.
The bill, H.R. 5666, was introduced late Friday night by the Democratic and Republican leaders of the House's space and science committees. The bipartisan legislation spans over 100 pages and touches on nearly every aspect of the U.S. civil space program. In this analysis, I will focus solely on its directives for human exploration.
HR 5666 presents a dramatically different vision from the White House's current human spaceflight plans, and also stands at odds with its counterpart Senate bill introduced last year. And unlike annual funding bills, legislation of this type is not required to keep NASA open and working. For these reasons, it is unlikely to become law as-is.
But it is significant, nonetheless. And the key to its significance—and to correctly understanding its intentions—is how it considers the role of Mars in defining human spaceflight goals. HR 5666 takes the position that Mars is a near-term (< 20 years) goal and attempts to craft a serious policy framework in support of that effort. By implication, it considers the current lunar return program, Artemis, as primarily a lunar-focused effort that will direct resources away from the Mars goal, and attempts to limit its ambitions accordingly.