Hi Hilmar,

Do we yet know where the earth is going, or from where it came. I suppose we know
at what speed it is traveling. I can't think of any reference point we can look to
for judging these thing. Everything seem to be moving, and the most we can tell is
that the defined universe seem to be expanding.

Light only has one speed, which is very fast, approxiamtely 186000 miles per second
This could be used to determine at what speed earth is moving through space. How do
we judge the distance of star far away from earth. Since straight lines and circles
may not be exact and a star 300 millian light year away from earth would make
trianglation unusable, since we could not form a base of a triangle with enough
distrance between two point to provide the angles needed.

Is earth moving in a straight line as it travel through space. Earth revolves 360
degrees on its axis once each day. Earth also revolves once around the sun
approximately once every 365.25 days. Our solar system may be revolving around
some other object. The entire galacy may also be revolving around yet something else.
Earth may well be moving in a circle within another circle.

It make me feel a little powerless to consider that we are moving through space
at some high rate of speed, not sure of either our point of origin or our point
of destination, yet if someone asked if I had moved within the last fifteen minute,
I would answer no.