Hi Shadow09,
The object you described sounds just like a satellite. Knowing that you live in Amarillo, TX, I looked up your location at
Heavens-Above.com to find out what satellites you might have seen tonight. Here are the results:

I see you made your first post at 9:08 pm. If you posted just a few minutes after seeing the object, you probably saw the International Space Station (ISS) passing by. It was just about directly overhead at 8:58 pm. Just a few minutes earlier, though, the European Space Agency's
Automated Transer Vehicle (ATV), Jules Verne, passed by. It was high in the sky over Amarillo at 8:54 pm as it gradually closes in on the space station to deliver supplies.
Either one of these vehicles would have looked like a very bright star moving across the sky about as fast as an airplane, but without the blinking lights. So, yeah, you probably saw a spaceship tonight -- one of ours! Pretty cool.