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Tiny Asteroid Skims Earth at ISS Altitude Over Antarctica, Found Only Hours Later

The late discovery sharpened concerns about blind spots in tracking meter-scale near-Earth objects that transit low Earth orbit.

Overview

  • Asteroid 2025 TF, roughly 1–3 meters wide, flew about 428 kilometers above Antarctica on Oct. 1 at an altitude comparable to the International Space Station.
  • The object was first spotted hours after closest approach by the Catalina Sky Survey, with rapid follow-ups by ESA and partner observatories refining its path to within seconds.
  • Records indicate it was the second closest observed non‑impacting asteroid pass, trailing only 2020 VT4 in 2020.
  • Due to its small size, it posed no significant hazard to Earth and would likely have produced only a fireball; JPL projects its next close approach in April 2087.
  • A day later, separate asteroid 2025 TQ2 passed at about 4,851 kilometers over Canada, underscoring frequent close approaches and the need to strengthen early-warning for satellites.