Hold on there mulder,
Both videos don't really show anything conclusive.
The first one just an object caught in the sunlight.
They say it's moving however, they are driving and the object doesn't seem to move that much.
Maybe it's even a aircraft warning marker or a helicopter.
you can't tell cause you don't know how high up it is.
The second one, whatever is.
is breaking apart, now I don't think any alien ship who traveled millions of lightyear will enter our atmosphere just to burn up.
you can see stuff light up brighter in the center before more parts break off, which would seem like something is burning/exploding.