Sphere over Pittsburgh (near), PA

The report, as filed

I was flying in a plane was descending to Pittsburgh Airport and was looking out the window. I was looking forward out the window and saw a sphere approaching the plane going the opposite direction, moving fast, since we were going in the direct opposite. My first thought was, what is that up here, then it was abreast of the wing, then gone. I had a good look as it was close to the plane. Round looking slightly reddish with one antenna sticking out that I could see and appeared to have others wrapped around the sphere. It was not smooth in that sense. The whole event was a second or so but caught my attention. I didn't say anything to the crew, as I departed, though I wanted to ask.

Held as-reported from National UFO Reporting Center (record NUFORC #127793). Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.