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Current Affairs

NASA to build telescope on dark side of the moon

Date: 17 April 2020 Tags: Space


NASA is funding an early-stage proposal to build a meshed telescope inside a crater on the far side of the moon.



This "dark side" is the face of the moon that is permanently positioned away from Earth, and as such it offers a rare view of the dark cosmos, unhindered by radio interference from humans and our by our planet's thick atmosphere. 



  • The ultra-long-wavelength radio telescope, would be called the "Lunar Crater Radio Telescope" and would have tremendous advantages compared to telescopes on our planet.

  • The telescope,  designed as a wire mesh,  would be deployed into a 2- to 3-mile-wide (3 to 5 kilometers) crater on the moon's far side. The 0.62-mile-diameter (1 km) wire-mesh telescope would be stretched across the crater by NASA's DuAxel Rovers, or wall-climbing robots.

  • If built, the "Lunar Crater Radio Telescope" would be the largest filled-aperture radio telescope in the solar system. A filled-aperture radio telescope is a telescope that uses a single dish to collect data rather than many dishes.

  • The atmosphere reflects low-frequency wavelengths of light greater than 32.8 feet (10 meters), essentially blocking them from reaching ground-based telescopes.

  • The telescope could enable tremendous scientific discoveries in the field of cosmology by observing the early universe in the 10– 50m wavelength band, which has not been explored by humans till-date.