NASA's Silent MAVEN Mars Probe Data Reveals Unexpected 'Zwan-Wolf Effect' in Solar Wind Interaction

Summary: Analysis of data collected by NASA's Mars Atmosphere and Volatile Evolution (MAVEN) mission — which lost contact with Earth in December 2025 — has revealed a new physical mechanism in how solar wind interacts with the Martian atmosphere. The discovery, known as the Zwan-Wolf effect, shows charged particles being funneled and squeezed along temporary magnetic structures during intense solar storms. The findings were published May 18, 2026 in the journal Nature Communications.

Sources (original pages)

• Space.com: 'Very interesting wiggles' in data from silent NASA Mars spacecraft lead to unexpected solar wind discovery
• Nature Communications paper (published May 18, 2026)
• NASA MAVEN Mission Homepage

Artist's concept of NASA's MAVEN spacecraft orbiting Mars. The Zwan-Wolf effect reveals how solar wind particles interact with the Martian atmosphere along temporary magnetic structures. (Credit: Space.com / LASP/CU Boulder)