THE ULTIMATE
On 25th April 1990, the Space Shuttle, launched on the 24th, placed its payload the Hubble Space Telecope into low Earth orbit.
The Hubble Space Telescope sits in low Earth orbit around 600 km above the Earth's surface, and thus is above the clouds that obscure the views of space of Earth based telescopes, and it is near enough to Earth to be serviced by astronauts - this has occurred five times, including correcting a fault in its mirrors discovered within weeks of it becoming operational. Over the 30 years of its operation Hubble has transmitted incredible images across from across depth, breadth of space and time. NASA has released a new image and visualised fly through of an image called 'cosmic reef' for Hubble's 30th Anniversary. This can be seen at www.hubblesite.org as well as available links to a lecture on the Hubble for the 30th Anniversary.
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