Spacecraft Earth

     The Earth is spinning east on its axis at 1040 miles per hour.  It rotated about 520 miles in the time it took for me to type this piece on this blog.  But we wouldn't suspect anything is happening, except the sun "travels" across the sky from east to west every day, causing day and night.  Because it is so large, we don't feel the Earth's spinning.
     At the same time, Earth is also moving around our star, the sun, at 66, 600 miles per hour.  We couldn't acknowledge that either, except the sun gets "higher" and "lower" in the sky through each year because of the Earth's tipping on its axis, causing the seasons.  Earth is attracted to the sun's mass (gravity)and would be drawn into it except for the speed in which this planet is traveling.  Its speed tries to throw Earth into space and gone, but the sun's mass doesn't allow that.  
     The Milky Way, the galaxy we are in, including the arm of stars and solar systems our solar system is in, is revolving at 558,000 miles an hour.  But through all that, we don't feel any activity
because the Earth, sun and our galaxy are all so massive. 
     We wouldn't know any of this is happening without the science called astronomy.  We couldn't know the Earth spins on its axis and revolves around the sun without astronomy. 
     But what really impresses me is that our galaxy is hurtling, non-stop, through space at 666,000 miles an hour.  And it will never return to the space it has come through.  Just since my birth, I have traveled in our galaxy through space in one direction, at least 421,330,112,000 miles.  That is mind-boggling.  But what is more, our galaxy has been traveling rapidly through space for billions of year.  This universe does seem endless.  But we don't know that.  And there could be an infinite number of universes beyond this one.  We just don't know.     
     The Earth is moving in all four of the above ways at once.  It's a wonder we aren't more dizzy than we are.  But trying to imagine all that we do know or have thought possible about our universe is mind-boggling enough.  Certainly there is a power infinitely greater than ourselves that created all we have experienced.  Let that power maintain that creation.