Celestial objects and space debris hit our planet almost on a daily basis; however, they don't pose any danger to humanity, as only enormous meteors or asteroids are able to reach the Earth's surface and not burn up in the atmosphere. That is where the main characters in our article come in – the huge 2019 XF and enormous 216258 (2006 WH1).
几乎每天都有来自太空的天体或碎片袭击地球；但它们不会对人类构成任何威胁，因为大多数在穿过大气层时燃烧掉，只有巨型流星或小行星才能靠近地表。本文所提及的便是此类小行星---巨型2019XF和216258 (2006 WH1)。
Two humongous asteroids, each capable of annihilating an entire city, are approaching our planet, NASA reported. The agency's Centre for Near-Earth Objects, tasked with monitoring celestial objects that may pose a danger to the Earth, reported that the two asteroids will swoosh past us this week.
The first big guy – 2019 XF – is estimated to be 130 metres in diameter, which makes it as big as the pyramid in Giza. The asteroid is travelling at a break-neck speed of 83,000 kilometres per hour. Scientists say it will pass our planet on 17 December at 11:13 EST time.
The second asteroid – 216258 (2006 WH1) – is travelling at a far lower speed of 41,000 kilometres per hour, but its size is quite frightening. Scientists say it is estimated to be 540 metres in diameter. This asteroid expected to come close to us on 20 December at 10:17 am EST.
第二颗小行星----216258 (2006 WH1)---正以每小时41，000公里的较低速度前行，但它的大小相当可怕。科学家们说它直径约为540米，预计将在12月20日美国东部标准时间10:17分接近我们。
NASA categorised both celestial bodies as Apollos, which means that they occasionally cross the Earth's orbit as it travels around the Sun. Due to its proximity to our planet, 216258 (2006 WH1) was categorised as potentially hazardous.
Both celestial bodies would leave enormous craters on the ground and destroy everything within an area as large as a major city. If they fall in the ocean, the impact would create massive tsunamis that would wipe out coastal areas. However, researchers say that these two do not pose threat to us.