For example, the light from an object that is 40 million light years away left that object 40 million years ago.
Many amateur astronomers contribute to the science of astronomy.
Furthermore, the price of large aperture telescopes has come down so much over the years that many amateurs now have equipment that rivals the stuff used by professional astronomers. Amateurs can contribute in many areas, such as variable star observing, meteor counting and comet hunting. Inc. All rights reserved. Simply register for a free Postbox in the country where your merchant is located.