International Asteroid Warning Network
IAWN is a world-wide planetary defense collaboration of organizations and individual astronomers recommended by United Nations resolution who collectively work to detect, monitor, and characterize potentially hazardous asteroids and Near-Earth Objects (NEOs). If an asteroid threat were ever identified, IAWN would act as a centralized hub for disseminating information to governments to aid with analysis of impact consequences and with planning of mitigation response options.
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IAWN Notifications
- 2025.02.24: Final Notification: 2024 YR4 -- No Significant Potential for Future Impact with Earth
- 2025.01.29: Notification of Potential Impactor: Asteroid 2024 YR4
Current Activities
The IAWN signatories have continued observing 2024 YR4, and the latest results - including observations from JWST - are posted!
IAWN is currently participating in a simulated asteroid impact threat scenario being prepared for the 2025 Planetary Defense Conference. More information about the scenario can be found on the NASA Jet Propulsion Laboratory's Center for NEO Studies website.
Recent Signatories
- Bill Gray, Project Pluto
- Chabot Space & Science Center (MPC-G58)
- Sharjah Astronomical Observatory (MPC-M47)