Can anything truly be stationary in our constantly moving universe?

[shinnsohai]

As you may know, our planet(Earth) , solar system, galaxy are moving in a very fast speed traveling around the universe
but, whenever a satellite being launched out from earth, and it's stationary means no speed
then will it be left behind ??

 

[mfb]

There is no absolute velocity in the universe. Only velocities relative to something else.
Satellites start with zero velocity relative to the Earth and gain a small velocity (~8km/s) relative to it - just enough to orbit it. Therefore, they stay in an orbit around earth. The speed of (earth+satellite) relative to anything else does not matter.

 

[shinnsohai]

this seems interesting !
so even we're in stationary, we're moving with 8km/s
cool!

Okay my curiosity solved !
:D

 

[mfb]

so even we're in stationary, we're moving with 8km/s
cool!

Much more, depending on the view. Earth is moving around the sun with 30km/s (relative to the sun). The solar system is moving around the galactic center with ~200km/s (relative to the galactic center). Relative to the cosmic microwave background, we are moving with ~400km/s.
Relative to high-energetic cosmic rays, we are moving with more than 99% of the speed of light ;).

 

[pmacias]

I am constantly fascinated by the vastness and complexity of our universe. The concept of our planet, solar system, and galaxy moving at incredible speeds through space is truly mind-boggling. However, it is important to note that the concept of "stationary" is relative in the context of our universe.

When we talk about satellites being launched from Earth and appearing stationary, it is because they are orbiting the Earth at the same speed and direction as the Earth itself. This is known as geostationary orbit, and it allows satellites to maintain a fixed position over a specific location on Earth.

However, in the grand scheme of the universe, even a satellite in geostationary orbit is still moving at an incredible speed relative to other objects in the universe. Our solar system is constantly moving through the Milky Way galaxy, and the Milky Way itself is moving through the expanding universe. So while a satellite may appear stationary to us on Earth, it is still moving at an incredible speed in relation to the rest of the universe.

In short, the concept of "left behind" is not applicable in the vastness of our universe. Everything, including our planet and all objects within it, is in constant motion and moving at incredible speeds. This is just one of the many wonders of our universe that continues to pique our curiosity and drive scientific exploration.