Two asteroids, named 2026 LD and 2026 KM3, are expected to pass close to Earth on June 9.

兩顆名為 2026 LD 與 2026 KM3 的小行星，預計將於 6 月 9 日接近地球。

These two objects have different sizes and paths. Asteroid 2026 LD is about 52 meters wide and will stay 1.14 million kilometers away from Earth. Meanwhile, 2026 KM3 is smaller, at roughly 34 meters, and will pass at a distance of 2.35 million kilometers. NASA and the Jet Propulsion Laboratory have emphasized that these distances mean there is no immediate danger to our planet.

這兩個天體的尺寸與路徑各不相同。小行星 2026 LD 寬約 52 公尺，將與地球保持 114 萬公里的距離。而 2026 KM3 則較小，約 34 公尺，將在 235 萬公里外經過。美國國家航空暨太空總署 (NASA) 與噴射推進實驗室強調，這些距離意味著我們的星球目前沒有立即危險。

Furthermore, these events help scientists improve planetary defense plans. By using optical telescopes and radar data, the Center for Near-Earth Object Studies can make their orbital calculations more accurate. This precision is necessary because small changes, such as the Yarkovsky effect—where uneven heat causes a slow shift in orbit—could change a path over many years. Consequently, tracking objects of this size is a vital way to test predictive models, even when there is no risk of a collision.

此外，這些事件有助於科學家完善行星防禦計劃。近地天體研究中心能利用光學望遠鏡與雷達數據，使軌道計算更加精確。這種精確度至關重要，因為微小的變動，例如亞爾科夫斯基效應（Yarkovsky effect）——即不均勻熱量導致軌道緩慢偏移——可能會在多年後改變路徑。因此，追蹤此類尺寸的天體是測試預測模型的關鍵方式，即使在沒有碰撞風險的情況下亦然。

Both asteroids will pass Earth safely, providing important data for long-term orbital predictions.

兩顆小行星都將安全通過地球，為長期軌道預測提供重要數據。