Explore Hubble's history and facts. When it takes a picture of a galaxy 100 million light years away, we are seeing the galaxy as it looked 100 million years ago. The Hubble telescope is unique because it was the first space telescope.
The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. The Hubble Space Telescope can see objects even more distant than your eyes can.
It was not the first space telescope but it is one of the largest and most versatile, well known both as a vital research tool and as a public relations boon for astronomy. At the time that light left that galaxy, dinosaurs still roamed Earth and humans would not appear for many millions of years!Because distant galaxies appear to us as they were millions or even … This is a galaxy so … I get asked this question, or variations of it, a lot. Note that the article linked below says that Hubble doesn't in fact send data to Earth - instead it sends it to the geosynchronous tracking and data relay satellite system (TDRSS) twice a day, which will add some delays. Also, the Hubble is one of the largest and most versatile. From the furthest point it will be about 4000 km away, so it would take 13 ms for the signal to reach earth (speed of light ~300,000 km/s). Since launch in 1990, the Hubble Space Telescope (HST) has provided amazing images that have led to discoveries. How come Hubble's pictures of galaxies billions of light years away are so beautifully detailed, yet the pictures of Pluto, which is so much closer, are just little blobs? The farthest-away galaxies are 13.2 billion light-years from Earth, meaning their light has taken 13.2 billion years to travel to Hubble's cameras. In 2011, the Hubble Space Telescope and the Spitzer Space Telescope both captured pictures of a galaxy so far away that it took the photons 13.3 billion years to reach us. The nearly 20-year-old Hubble Space Telescope has taken many iconic images of the cosmos and is even the star of a new 3D IMAX movie that gives viewers a chance to fly through those snapshots.