Answer:
I am a path between high natural masses; remove the first letter to get a path between man-made masses.
Physicists have built devices to move me very fast. My last seven letters can be commonly found in newspapers magazines and journals.
Tool of thief, toy of queen. Always used to be unseen. Sign of joy, sign of sorrow. Giving all likeness borrowed.
I am the black child of a white father a wingless bird flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me even though there is no cause for grief and at once on my birth I am dissolved into air.
I think you live beneath a roof that is upheld by me; I think you seldom walk abroad but my fair form you see; I close you in on every side you very dwelling pave and probably I'll go with you At last into the grave.
In your fire you hear me scream! Creaking and whining yet I am dead before you lay me in your hearth.