2 large asteroids will be visible this week

(WKBN) - Two large asteroids will safely pass by Earth this week, and at least one of them will be visible with a small telescope.
The first and largest is Asteroid 2011 UL21, one of the largest asteroids that will pass by Earth this year.Graphical representation of Asteroid 2011 UL21. (Image courtesy of NASA)This asteroid has a diameter of nearly 1.5 miles, making it larger than 99% of all near-Earth objects. Thankfully, it will pass Earth by at a safe distance of over 4 million miles away.
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