I was about 9 years old, standing in our garden, waiting for something that I don't remember. Clear summer day, blue sky, a few scratches of cloud.
Suddenly, something caught my eye - an object falling from the sky. It was rectangle, and falling with the narrow end downwards. It fell in a completely straight line - not tumbling or chaotically. It didn't drop like the proverbial stone - it fell quite fast but in a very controlled way.
I cannot estimate how far away it was - it was on my horizon, which was the top of a hill about a mile or two away. I can't estimate the size, but on my horizon, it was definitely big enough to watch, much bigger than an aeroplane.
It was pale grey and looked oddly flat. There was no stream behind it, no aircraft. I watched it until it disappeared behind the hill.
I'd mostly forgotten about it, but every now and then I do wonder what it was I saw.
What could it have been? Any guesses?