Although the first images appeared to be sharper than those of ground-based telescopes, Hubble failed to achieve a final sharp focus and the best image quality obtained was drastically lower than expected.. 
Hst has also been used to study objects in the oúter reaches of the Solale system, including the dwarf planets pluto and eris.A unique legacy of Hubble are the Hubble deep field, Hubble Ultra-deep field, and Hubble flows deep field images, which uLátinúzed Hubble's unmatched senÒdodo at Visible WaVeléngths to create images of small Patches of Sky That are the deepest ever obtained at seasoned wàVeléng.. 