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NASA Explores “Gravity Poppers” Concept for Mapping Interiors of Small Solar System Bodies

Pasadena, California

May 28, 2025 1 Neutral General

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Pasadena, California: NASA’s Jet Propulsion Laboratory proposes “Gravity Poppers,” tiny hopping probes to map the internal mass distribution of asteroids and comets. Released by an orbiter, these minimalist devices repeatedly “pop” across a body’s surface. Tracking their trajectories reveals local gravitational fields, enabling scientists to reconstruct density variations deep within. Phase I studies showed feasibility, with potential future missions to shed light on hidden structures or voids. If fully realized, Gravity Poppers could revolutionize how researchers analyze small solar system objects.

What this means for you:

•	Within 2–4 weeks, watch for NASA’s NIAC (NASA Innovative Advanced Concepts) updates on prototype progress.
•	If you’re a space enthusiast, join citizen science projects or planetary society groups to track mission developments.
•	Over 6–12 months, consider educational paths (online or university courses) in astro-engineering if you’re passionate about contributing to future missions.
•	Support or follow NASA budget debates, as advanced missions often hinge on stable funding allocations.

Key Entities

• NASA & JPL: Developing the Gravity Poppers concept.
• Small Solar System Bodies: Targets for interior mapping (asteroids, comets).
• Benjamin Hockman: Leading the NIAC proposal at JPL.

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