Ufo travelled at high speed and disappeared in a portal?

So I was out walking my dog and I was looking at the sky because I’m in love with the universe and we’re outside for about 15 mins. We begin to walk back home headed east, the sky is clear you can see every single star. I continue to stare at the sky and I noticed what I thought was a shooting star. I instantly thought no way I’ve never seen a shooting star my whole life. The ball of light went straight and picked up an immense amount of speed it leaving behind a white tail of light as it travelled across the sky. All of a sudden the light disappeared like it went behind a curtain and the tail followed behind and disappeared into the night sky. I can only describe the visualization as it possibly opened a portal and disappeared once inside taking the tail of light with it. I’ve never seen something travel across the sky like this! It cleared 2/3 of my field of vision in what felt like two seconds.