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In the first decade of the 21st century, there has been a new wave of observatory construction at very high altitudes above 4,500 m (14,800 ft), with such observatories constructed in India, Mexico, and most notably the Atacama Desert in northern Chile, now the site of several of the world's highest observatories.
Major Atmospheric Cerenkov Experiment Telescope ( MACE) is an imaging atmospheric Cerenkov telescope ( IACT) located near Hanle, Ladakh, India. It is the highest (in altitude) and second largest Cerenkov telescope in the world. It was built by Electronics Corporation of India, Hyderabad, for the Bhabha Atomic Research Centre and was assembled ...
Airborne observatory. Radio observatory. Microwave observatory. Ground-based observatory. Solar observatory. Neutrino detector. Cosmic-ray observatory. Educational observatory. This is a partial list of astronomical observatories ordered by name, along with initial dates of operation (where an accurate date is available) and location.
Earth observation satellite missions developed by the ESA as of 2019. Earth observation satellites are Earth-orbiting spacecraft with sensors used to collect imagery and measurements of the surface of the earth. These satellites are used to monitor short-term weather, long-term climate change, natural disasters.
This list of space telescopes ( astronomical space observatories) is grouped by major frequency ranges: gamma ray, x-ray, ultraviolet, visible, infrared, microwave, and radio. Telescopes that work in multiple frequency bands are included in all of the appropriate sections. Space telescopes that collect particles, such as cosmic ray nuclei and ...
Great Observatories program. NASA 's series of Great Observatories satellites are four large, powerful space-based astronomical telescopes launched between 1990 and 2003. They were built with different technology to examine specific wavelength/energy regions of the electromagnetic spectrum: gamma rays, X-rays, visible and ultraviolet light, and ...
C/2021 A1 (Leonard) C/2021 A1 (Leonard) was a long period comet [4] that was discovered by G. J. Leonard at the Mount Lemmon Observatory on 3 January 2021 (a year before perihelion) when the comet was 5 AU (750 million km) from the Sun. [1] It had a retrograde orbit. The nucleus was about 1 km (0.6 mi) across.
W. M. Keck Observatory. Subaru Telescope. Hobby–Eberly Telescope. Large Binocular Telescope. Very Large Telescope. Southern African Large Telescope. Gemini Observatory. Gemini Observatory. This list of the largest optical reflecting telescopes with objective diameters of 3.0 metres (120 in) or greater is sorted by aperture, which is a measure ...