That is simply a 'Business Tactic' from the makers of Dark Orbit.
If you don't play Dark Orbit for 1-3 Months then they give you free Premium so that you start playing Dark Orbit again.
Similar to World of Warcraft where they give you free 7 days Membership is you didn't play for 1-3 Months.
Hope that answered your Question!
Never. The Hubble telescope has never left orbit around Earth.
It never did, and now it's destroyed so it never will. Sputnik1 only went into low-earth orbit, and never orbited anything else.
The shuttle never has and never will orbit the moon.
The orbit of mars is outside that of the earths orbit
Never. That's a fictitious planet that never really existed.
Lunar orbit...
Yes this is called Geosynchronous Orbit. This is when a satellite is in orbit but never moves in relation to its point on Earth.
The Daily Orbit - 2012 Never Cheat a Cheetah 2-8 was released on: USA: 6 September 2013
The shuttle never leaves Earth orbit, it simply goes into orbit and then returns. Moving to a higher orbit requires additional speed and manuevering, as when visiting the ISS.
Actually that would be the Earth's orbit around the moon (in fact, they both rotate about a common point.) Note that the moon NEVER moves "backwards" in its orbit (most other satellites do).
The orbits never change their position...
The orbit of objects that approach the Sun, or Earth, from far away, above a certain critical speed.At a certain critical speed, the orbit will be a parabola. Above the critical speed, the orbit will be a hyperbola. (In both cases, the object will go away, never to come back.) Below the critical speed, the orbit is an elipse or a circle.The orbit of objects that approach the Sun, or Earth, from far away, above a certain critical speed.At a certain critical speed, the orbit will be a parabola. Above the critical speed, the orbit will be a hyperbola. (In both cases, the object will go away, never to come back.) Below the critical speed, the orbit is an elipse or a circle.The orbit of objects that approach the Sun, or Earth, from far away, above a certain critical speed.At a certain critical speed, the orbit will be a parabola. Above the critical speed, the orbit will be a hyperbola. (In both cases, the object will go away, never to come back.) Below the critical speed, the orbit is an elipse or a circle.The orbit of objects that approach the Sun, or Earth, from far away, above a certain critical speed.At a certain critical speed, the orbit will be a parabola. Above the critical speed, the orbit will be a hyperbola. (In both cases, the object will go away, never to come back.) Below the critical speed, the orbit is an elipse or a circle.