Science ❯ Astronomy ❯ Asteroids ❯ Planetary Defense

Risk Assessment

NASA Warns Thousands of Mid‑Sized Asteroids Remain Undetected as Deflection Capability Lags

Officials say the near‑term risk is a large detection gap with no deflection mission on standby.

Newly Found Asteroid Inside Venus Completes a 128-Day Orbit, Second-Fastest on Record