Leland Melvin recently let slip his own alien encounter while acting as engineer aboard Atlantis. He described a translucent, organic, alien-like object floating outside the shuttle windows. He tried to alert NASA’s mission control in Houston, but they fed him the cover up (It’s just ice breaking away from the shuttle.) Video at original link here.
NASA routinely covers for our government’s routine contact with aliens. Looks like this is just one more for the list.
Tuireann