Radio astronomy uses radio waves, which are a type of electromagnetic radiation with long wavelengths and low frequencies.

Radio telescopes are specialized instruments designed to detect and collect radio waves from celestial objects.

The Square Kilometer Array (SKA) is the largest radio telescope in the world, consisting of thousands of individual antennas spread across multiple locations.

Radio telescopes can observe through clouds and dust, making them ideal for studying objects obscured by these interstellar materials.

Radio astronomy is used to study a wide range of celestial objects, including stars, planets, galaxies, nebulae, and quasars.

The cosmic microwave background (CMB) is the most famous radio astronomy discovery. It is the remnant radiation from the Big Bang, the event that created the universe.

Radio astronomy has led to the development of various communication technologies, including radio, television, and satellite communication.

The future of radio astronomy involves the construction of larger and more powerful radio telescopes, the development of new radio astronomy techniques, and the exploration of new areas of the radio spectrum.

Arecibo Observatory was a radio telescope located in Puerto Rico. It was the largest single-dish radio telescope in the world until its collapse in 2020.

The Atacama Large Millimeter Array (ALMA) is a radio telescope located in the Atacama Desert in Chile. It is the largest and most powerful millimeter-wave telescope in the world.

The Very Large Array (VLA) is a radio telescope located in the Plains of San Agustin in New Mexico. It consists of 27 radio telescopes spread over a 36-kilometer (22-mile) area.

The Square Kilometer Array (SKA) is a radio telescope located in Australia and South Africa. It is the largest and most ambitious radio telescope ever built, consisting of thousands of individual antennas spread across multiple locations.

The first exoplanet, 51 Pegasi b, was discovered in 1995 using the Arecibo Observatory.

The cosmic microwave background was discovered in 1965 using the Cosmic Background Explorer (COBE) satellite.

The first pulsars were discovered in 1967 using the Arecibo Observatory.