There is only one single Hubble Space Telescope. It was placed into Earth orbit
in April of 1990, and is expected to remain useful and productive until sometime
between 2014 and 2020.
The Hubble Telescope was sent into space in 1990. It was designed and built for several years before that. As of 2014, it is still in operation.
2005
1990
NASA's most famous telescope is probably the Hubble Telescope that orbits the earth.
April, 1990.
The Hubble Space Telescope was launched into orbit aboard NASA's space shuttle Discovery (mission STS-31) on April 24, 1990.The Hubble Space Telescope was originally meant to be launched in 1986, but the explosion of the space shuttle Challenger delayed the launch until April 24th 1990.The Hubble telescope is now seen as one of the most versatile telescopes in space. After it was launched in 1990, astronomers had a chance to change and improve the telescope through missions by astronauts aboard the Space Shuttle.
The HST was launched on April 24, 1990.
The Hubble Space Telescope was put into the orbit in 1990 and is still there up until today. It already had to be repaired five times and is expected to stay in the orbit until at least 2013.
The Hubble telescope was launched in 1990, but faulty optics limited its use until a shuttle mission made repairs in 1993. Other servicing missions improved its onboard instruments. It will be mostly superseded by the James Webb Space Telescope planned for launch around 2018.
Hubble has never "explored" Neptune. It is a telescope in orbit round Earth and from Earth it has "imaged" Neptune. It has done this several times eg 1996 and 1998 (there may be more times!).
The Hubble Telescope is hit by small objects like tiny meteoroids a few times a year, but its robust design and protective shielding help minimize damage. The telescope orbits Earth in a region with relatively low debris density, reducing the likelihood of collisions.
The Hubble Telescope was launched into space in 1990. Nelson Mandela was also freed from prison in the year 1990.