Report from MUFON:
Date of event: March 17, 2010
Location of event: Virginia, USA
"I was standing alone at the bus stop at 8:45 AM, looking in a southeasterly direction when I spotted a silver sphere streak through the sky at an estimated distance of half a mile and several hundred feet off the ground. The object was observed for a brief 2-3 seconds at a 45 degree angle from the horizon and traveling in a clear blue sky.
It was the size of a dime held at arm's length and heading in the direction of Alexandria, VA, and the Potomac River. Its flight path from behind me would have had it traveling over the Pentagon.
It reflected the sun’s light, and traveled about the same speed that a falling star would be traveling. There was no sound and it simply vanished in flight, not just disappearing over the horizon.
I hadn’t planned on reporting this except that it seemed very similar to the silver-colored sphere described in case 22347 one hour later in Pennsylvania."