LETTER FROM THE EDITOR

摘要

This issue commemorates the 20th anniversary of the Hubble Space Telescope. Once deemed by Newsweek as the "$1.5 billion blunder," the Hubble has now become one of America's most beloved space instruments.rnThe Hubble has now achieved the stardom it deserves; once unable to capture clear images, the telescope now takes breathtaking images and collects more valuable data than ever before. And if space enthusiasts can't get enough, in 2010, the Hubble will star in IMAX: Hubble 3D, allowing space fans a glimpse at the historical technological developments of the world's most renowned space telescope.