Considering the Hubble Space telescope was launched in 1990, how many megapixel does hubble telescope have? How is it able to keep up with modern technology?
1 Answer
It has zero pixels.
Explanation:
The Hubble telescope collects data in analog form. That is because it is a concave mirror which collects light wave and sends them in a focused form to its receivers. The receivers translate them into a digital format for transmission back to earth.
The Hubble telescope has been updated a number of times by astronauts traveling to it in the space shuttle. The first time was to fix the reflective surface itself as it was found to blur the incoming light.
But the basic electronics and the telescope itself do not need updating. Its only mission is to collect data and transmit it back to earth. Once on earth, scientists use every newer computers and techniques to analyze the data collected.
The Hubble telescope is in its last years of existence anyway. It is not expected to be functioning after 2018. A replacement is already being prepared, "The Webb Telescope," for launching in 2018.
