Astronauts made all the needed repairs, giving the telescope five to 10 more years of life.
Five successful spacewalks on five consecutive days have repaired and refurbished one of the most revolutionary observatories in the history of astronomy.
It's a bittersweet moment for those on the ground as well as those on orbit. A successful release of Hubble tomorrow marks the beginning of the end for the venerable telescope – its final five to 10 year period of research before it is sent plummeting into the Pacific Ocean.
But what a five to 10 years it is expected to be.
Targets range from galaxies in the very young universe billions of light-years away to planets orbiting other stars in the Milky Way.