NASA is currently tracking three near-Earth (NEO) objects that are expected to pass through Earth on November 20. Most worryingly, two of the three were seen only last weekend, once again increasing tensions over planetary defense.
The first of Wednesday's cosmic flybys and the largest, measuring 48 to 110 meters in diameter, will be asteroid 2019 UK6, which will pass at approximately 6:20 GMT (1h20 EDT). It is about the UK of 20196 that we had the most early warning, as was first noted on October 24th.
NEO 2019 UK6 is an asteroid Love, which revolves around the Sun and Earth occasionally, but very rarely, crossing Earth's path. Apollo asteroids, on the other hand, intersect with Earth's orbit as the planet travels around the sun.
Wednesday's second air flight will be WF 2019, first detected by NASA asteroid hunters just two days ago, on November 17. Estimated to be about 24 meters wide, it will make your closest approach to Earth about twice the distance from the moon, so anyway, there is no danger of an extinction level event.
Lastly will be the 2019 WE, also seen in the last second of November 17th. This asteroid will sail beyond our planet at a distance of about 1.3 million kilometers away.
According to NASA's Near Earth Object Studies Center (CNEOS), all three will have what's called "Near Earth Approaches" but fortunately none of them is believed to pose any threat.
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