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On Oct. 1, 2025, the small asteroid often known as 2025 TF whizzed previous Earth at a distance of solely 266 miles (428 kilometers) from our planet — roughly the identical altitude because the International Space Station.
For a number of fleeting moments over Antarctica, the near-Earth asteroid got here nearer than most functioning satellites.
What is it?
2025 TF is a small asteroid just 3 to 6 feet (1 to 3 meters) wide. It’s considered a near-Earth asteroid because, like other space rocks in this category, it comes within 1.3 AU (astronomical units) of the sun, close enough to occasionally cross paths with Earth’s orbit.
Other near-Earth asteroids can be larger, even getting up to a couple of miles wide. While most of these asteroids pose little threat, understanding their trajectories is crucial for assessing potential impact probabilities. Smaller asteroids, like 2025 TF, burn up harmlessly in the atmosphere or scatter small meteorites across Earth’s surface. Larger ones, however, can cause regional or even global effects, such as the asteroid that killed the dinosaurs millions of years ago.
Where is it?
This image was taken by the Las Cumbres Observatory telescope in Siding Spring, Australia, according to the European Space Agency.
Why is it amazing?
There are many programs that detect near-Earth asteroids as part of countries’ planetary defense strategies. In the case of asteroid 2025 TF, it was the Catalina Sky Survey, based mostly in Arizona and operated by the University of Arizona, that first detected the asteroid hours after it handed Earth.
After the invention, the European Space Agency’s Planetary Defense Office shortly mobilized and captured follow-up observations from Australia, utilizing a telescope within the Las Cumbres Observatory community. Locating and monitoring an object that is just a few ft throughout, with its place unsure, is just not a straightforward process, however the observations allowed the astronomers to pinpoint the asteroid’s trajectory and flyby time.
Asteroid 2025 TF’s flyby is a reminder of how dynamic and unpredictable our photo voltaic system may be. Though it got here and went unnoticed by most of humanity, it highlights the continued work of astronomers to maintain watch over the skies, making certain the subsequent customer does not take us unexpectedly.
Want to be taught extra?
You can learn extra about near-Earth asteroids and planetary defense initiatives.
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