Isaac Newton is credited with inventing the first reflecting telescope in the late 17th century.

Reflecting telescopes have a larger light-gathering capacity than refracting telescopes, allowing them to collect more light and observe fainter objects.

Herschel's telescope was the first to use a parabolic mirror, which significantly reduced spherical aberration and improved image quality.

The Gran Telescopio Canarias is the largest optical telescope in the world, with a primary mirror diameter of 10.4 meters.

The Hubble Space Telescope is primarily used for observing distant galaxies and studying the early universe.

The primary mirror of the James Webb Space Telescope is made of beryllium, which is lightweight and has a low coefficient of thermal expansion.

The Very Large Telescope was the first to directly image an exoplanet, known as 2M1207b, in 2004.

The Atacama Large Millimeter Array (ALMA) is primarily used for studying the formation of stars and planets, as well as other astronomical phenomena at millimeter wavelengths.

LIGO (Laser Interferometer Gravitational-Wave Observatory) was the first to detect gravitational waves in 2015.

The primary goal of the Event Horizon Telescope (EHT) is to image black holes, including the supermassive black hole at the center of our galaxy.

The Kepler Space Telescope was the first to discover a planet outside our solar system, known as Kepler-4b, in 2009.

The primary mirror of the Thirty Meter Telescope (TMT) is expected to be made of beryllium, similar to the James Webb Space Telescope.

The Event Horizon Telescope (EHT) was the first to directly image a black hole, specifically the supermassive black hole at the center of the galaxy M87, in 2019.

The primary goal of the Square Kilometer Array (SKA) is to observe radio waves from distant galaxies and study the early universe.

The James Webb Space Telescope was the first to discover water vapor on an exoplanet, specifically the exoplanet WASP-96b, in 2022.