In the past week, planetary science in the United States has seen significant developments, both positive and concerning. Most notably, there is growing alarm in the scientific community and among lawmakers over proposed budget cuts to NASA’s science programs. The bipartisan Congressional Planetary Science Caucus, co-chaired by Representatives Don Bacon of Nebraska and Judy Chu of California, issued a strong statement on April fifteenth expressing deep concern about a preliminary White House budget that would cut NASA’s Science Mission Directorate by half and eliminate funding for the high-profile Mars Sample Return mission operated by the Jet Propulsion Laboratory in California. They argue such cuts would dismantle crucial scientific efforts, jeopardize thousands of jobs, and risk surrendering United States leadership in space exploration to international competitors. The Mars Sample Return mission, in particular, has been seen as a cornerstone for future manned Mars missions and essential for understanding the Red Planet’s history and potential for life.

Meanwhile, NASA continues to pursue a range of educational and scientific initiatives. The agency’s Human Exploration Rover Challenge was held at the U.S. Space and Rocket Center near the Marshall Space Flight Center in Huntsville, Alabama, on April eleventh and twelfth, with student teams from across the country competing in complex engineering trials. There is also a renewed focus on workforce development, as NASA’s Glenn Research Center in Cleveland announced the launch of a summer engineering institute for high school students, aiming to inspire the next generation of planetary scientists and engineers. This outreach is particularly valuable as the sector faces potential funding headwinds.

Recent planetary science findings have also made headlines. According to reporting from Phys.org, new research suggests that carbon-rich meteorites, despite being abundant in space, rarely reach Earth’s surface. This could have implications for understanding how water and organic materials—and by extension, the building blocks of life—arrived on our planet. International teams have also analyzed lunar samples returned from the moon’s far side, discovering drier soil compared to the side facing Earth. These results call for a reassessment of theories about water distribution on the lunar surface.

Global planetary science events are also underway. NASA’s Lucy spacecraft is set to fly by asteroid Donaldjohanson in the asteroid belt on April twentieth, as noted by The Planetary Society. This will be the second target in Lucy’s decade-long mission to study asteroids near Jupiter, providing deeper insights into the early solar system.

Looking ahead, the planetary science community is bracing for debate in Congress over the future of funding, while researchers and students continue to push the boundaries of knowledge both in the United States and abroad. The coming weeks will be critical in determining whether the United States can maintain its leadership role in planetary science and exploration or face a significant turning point.