Astronomers' study of distant expansesthe vast universe requires ever more powerful and advanced equipment. Terrestrial telescopes are limited by the ability to observe through the ionosphere, reflecting radio waves that suppress the signal and thus reduce the effectiveness of research. For space radio telescopes, a significant limitation is the size and weight of the equipment that humans can deliver into orbit.
Scientists from NASA have proposed an original andan obvious solution to the problems of radio astronomers by moving a radio telescope beyond the Earth’s ionosphere and placing a stationary telescope on the surface of the back of the moon in one of the many lunar craters.
A device called the Lunar Crater Radio Telescope (LCRT) will be placed at the bottom of the crater with an outer diameter of 3 to 5 km.
The natural relief of the lunar crater will allowto form a hemispherical reflector at its bottom with a wire mesh, the diameter of which will be about one kilometer. The creation of the spherical mirror of the radio telescope will involve DuAxel robots. An overhead receiver will be placed in the center of the radio telescope to capture information. The project will create the largest radio telescope in the history of mankind with a filled aperture.
Observation of the universe will be carried out inthe range of ultra-long radio waves of 10-50 m with a frequency of 6 to 30 MHz, inaccessible to work from the Earth due to the presence of the ionosphere. In addition, the radio waves emitted and received by the radio telescope will receive natural protection in the form of the moon, from interference generated by terrestrial radiators of radio waves, as well as from radio waves of communication satellites and spacecraft.