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The Event Horizon Telescope (EHT) is a telescope array consisting of a global network of radio telescopes.The EHT project combines data from several very-long-baseline interferometry (VLBI) stations around Earth, which form a combined array with an angular resolution sufficient to observe objects the size of a supermassive black hole's event horizon.
The first SVLBI experiment was carried out on Salyut-6 orbital station with KRT-10, a 10-meter radio telescope, which was launched in July 1978. [citation needed] The first dedicated SVLBI satellite was HALCA, an 8-meter radio telescope, which was launched in February 1997 and made observations until October 2003. Due to the small size of the ...
In astrophysics, an event horizon is a boundary beyond which events cannot affect an outside observer. Wolfgang Rindler coined the term in the 1950s. [1]In 1784, John Michell proposed that gravity can be strong enough in the vicinity of massive compact objects that even light cannot escape. [2]
A two-hour episode examines what scientists have learned about M87*, the supermassive black hole in the supergiant elliptical galaxy Messier 87 (also known as Virgo A or NGC 4486). M87* is the first supermassive black hole photographed by the Event Horizon Telescope.
Pune, Maharashtra, India 50–1420 MHz Thirty 45 m wire dishes; [13] largest telescope at meter wavelengths. Operated by the National Centre for Radio Astrophysics. [14] Ooty Radio Telescope (ORT) Ooty, Tamil Nadu, India 326.5 MHz The radio telescope is a 530-metre (1,740 ft) long and 30-metre (98 ft) tall cylindrical parabolic antenna. It ...
The 18.3 m (60 ft) Westford Radio Telescope was built in 1961 by Lincoln Laboratory for Project West Ford as an X-band radar antenna. [15] It is located approximately 1.2 kilometers (0.75 mi) south of the Haystack telescope along the same access road. The antenna is housed in a 28.4 m (93 ft) radome and has an elevation-azimuth mount.
On 14 December 2018, Aaj Tak launched India's first Hindi high-definition channel, Aaj Tak HD. [1] Aaj Tak HD broadcasts news and two extra shows like Duniya Aaj Tak aired from 2019 (transl. World up to the minute) covering world news, Business Aaj Tak aired from 2019 (transl. Business up to the minute) covering the financial news of India and the world.
The CARMA array was decommissioned in 2015 at which time the Leighton telescopes were moved back to OVRO, where they are now being repurposed for different projects including the CO Mapping Array Pathfinder (COMAP) [2] (a 19 pixel imaging array), the Event Horizon Telescope (EHT), and various transient detection projects.