they can only get so big before they will fail to stay in the sky we're probably at about our limit now
They don't fly direct, they refuel in Hong Kong or Singapore normally.
why do clouds stay up in the sky why do clouds stay up in the sky
plane fly in sky
planes birds stars and what not
they are planes that go above in the sky during war and drop bomb.....
No only on planes.
planets stay in the sky due to the pull of gravity
Birds, kites, planes !
If the lights are moving, it is most likely they are planes. If the lights are not moving, it is most likely they are stars.
Nova - 1974 Fastest Planes in the Sky 19-6 was released on: USA: 12 November 1991