In 2018, several asteroids made close approaches to Earth. Here's a brief summary of some notable ones: 1. **2018 BX** - This asteroid made its closest approach on January 19, 2018, passing at a distance of about 173,000 kilometers from Earth. 2. **2018 CA** - Approached on February 1, 2018, at a distance of roughly 63,000 kilometers.
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