I've often wondered what intelligent beings from another world
might look like. We so often hear that they may be very different
from us, but there are sure to be a few similarities.
For instance..they came in a ship of some type. It had to be manufactured,
which requires the ability to hold a tool, or to even to build a machine
to hold a tool.
The materials and components of the ship had to be sourced, and refined,
as did whatever fuel they are using as a means of locomotion.
Their brains may be in their arse, but they still have to be able
to manipulate objects.
It's also possible that Earth is so far off into the galactic weeds that we
don't even know about the galactic marketplace for space ride components.
Could well be there is a galactic version of Heathkit out there selling DIY
faster-than-light-speed spaceship kits?
If the object was "falling" in any direction then it would never go very fast. As fast as a skydiver before he opens his parachute. Or the speed at which an apple falls off a branch. Gravity is a very weak force in nature. We defy it every time we jump or fly by aircraft. But it is VERY persistent and if you get enough mass it starts to add up.
"Warp Speed" is a Gene Roddenberry invented TV concept of being able to exceed the speed of light by warping space - at which point the object would be invisible to a stationary (or even super-sonic) viewer. A Warp drive is theoretically possible - but there is no definition yet of what "warp speed" would actually be. You'd still be traveling at whatever speed you entered the warp - but reappear somewhere else in space at that same speed. Like Dizzy pointed out - the universe operates under certain physical and thermodynamic laws. You'd not only have to "defeat" gravity to make a sudden stop or 90? turn. You'd have to defeat momentum and inertia. If you can figure out ho to convert energy to heat, and have a big enough heat sink, maybe it could be pulled off.