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

Pasadena, California

May 28, 2025 (Updated: February 13, 2026) 0 Center 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.

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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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