Hubble Space Telescope is possibly one of the longest unmanned space vehicles to be used continuously for this long and even after 21 years Hubble is showing no signs of stopping. Ever since Hubble launched 21 years ago it has been providing Earth with astounding photographs and images and even today Hubble is still making incredible discoveries and providing incredible pictures.
The original plan for Hubble was to simply explore deep space by monitoring and relaying images back to Earth but as the years passed Hubble has turned into a fulltime space telescope which is being used to find far away galaxies for future study. This week Hubble even managed to discover what could be the oldest and farthest away galaxy we have ever seen.
The galaxy in question is apparently as much as tens of thousands of light years away. This is an astonishing discovery because previously there were no known objects this far away from our current position. Obviously NASA is still going to continue with studies but unfortunately given the distance of the galaxy it is nearly impossible to find out much about what it contains.
As for other notable discoveries Hubble has numerous. Possibly the biggest contribution however is simply the incredible images provided by the Hubble Space Telescope; textbooks, movies and TV shows are filled with images from Hubble and fortunately thanks to recent upgrades and repairs it looks like Hubble will be able to continue providing us with astounding images for years to come.