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"Natural disasters may increase because of changing global ecology. But it will not completely destroy the world. The world will remain for thousands of years. But our complaints will never end. Everyone among nearly 7 billion human beings have something to complain about. Don't worry. Be optimistic," he said.
There is a good opportunity to observe what is currently the largest asteroid that makes a close approach to the Earth on the evening of 8 November.
Asteroid 2005 YU55 is 400 metres in size and it will make its closest approach at 11pm at a distance of 324,600km, which is 85 percent of the Earth-Moon distance (but there is no chance of it hitting the Earth!). If you have a 150mm or 200mm ‘scope then, despite the presence of the Moon and the asteroid’s low altitude in the western sky, it should still be possible to see it whizzing across the sky at 8.6 arcminutes a minute at the time of closest approach.
As darkness falls around 6pm the asteroid will be in Ophiuchus, some 24 degrees up and glowing at mag.+15.2. Two hours later it will have brightened by one and a half magnitudes and moved into neighbouring Serpens. At the time of closest approach at 11pm it will have very swiftly moved into Delphinus and brightened to mag. +12, but you will need a clear western horizon to follow it as its altitude will have slipped to 14 degrees.
On 8 November 2011 at 23:28 UT, the asteroid will safely pass within 0.85 lunar distances of the Earth. A lunar distance of 0.85 is also 0.00217 AU (325,000 km; 202,000 mi). On 9 November 2011 at 07:13 UT, the asteroid will pass 0.00160 AU (239,000 km; 149,000 mi) from the moon.