Air source heat pump (extracts heat from outside air) Airâair heat pump (transfers heat to inside air) Airâwater heat pump (transfers heat to a heating circuit and a tank of domestic hot water) Air-air heat pumps, that extract heat from outside air and transfer this heat to inside air, are the most common type of heat pumps and the cheapest.
Confidence votes 42.4K. The Hubble Telescope was named after Edwin Powell Hubble who was an astronomer that confirmed that there were galaxies other than our own Milky Way; the discoveries of other galaxies have been repeatedly confirmed by the observations of the Hubble Telescope.
That telescope made it possible for us to see many things in space we hadn't seen before. A space telescope is an improvement on the Earth-based telescope because it can be sent into space to send back images to Earth. Answer and Explanation: The Hubble Space Telescope was the first space telescope built by NASA. It was sent into space on April 24, 1990 and is still sending back images to Earth today. According to NASA, the Hubble Space Telescope orbits Earth at a speed of 17,000 mph, and takes pictures of stars, galaxies, planets, comets, and other space objects as it travels around the Earth. Learn more about this topic: