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Цитатаhttp://www.ukspace.org/news-item/qinetiq-supplies-technology-for-dark-matter-observation/30 September 2014 - QinetiQ has been awarded an initial contract worth up to €2.3 million, to supply a critical component of the Euclid space telescope developed by Airbus Defence and Space in Toulouse and due to be launched in 2020. QinetiQ will be supplying a baffle, which sits on top of the telescope and which prevents stray light to enter into the optics. The baffle will as such increase the effectiveness of the telescope.The baffle, developed by QinetiQ, is a black cylindrical structure at the front of the telescope that prevents stray light out of the instrument's optics, making it possible to achieve the very stringent image quality requirements that will allow the investigation of the nature of dark energy and of the dark matter. Engineers used their expertise to develop a unique aluminium round structure capable of resisting temperatures as low as -200˚C and weighing less than 60 kilograms. Malika De Ridder, project manager for QinetiQ said "The combination of the volume, mass and temperature in space requires a specially adapted model. The module is 2.60 metres long with a diameter of 1.80 metres, so a lot of technological ingenuity was needed to keep the weight down, which our engineers were able to achieve". QinetiQ started building a prototype in May this year and is due to be completed by the end of 2016. The launch of the Euclid module is scheduled for 2020, and the module will remain in space for six years, sending 800 gigabytes of data back to Earth every day.QinetiQ developed its first telescope baffle ten years ago and has developed an unrivalled reputation for its unique, lightweight design. QinetiQ is also currently developing a telescope baffle for the Cheops satellite, which will detect and analyse planets in other solar systems in 2018.
ЦитатаKey milestone for Euclid mission, now ready for final assembly18 December 2018ESA's Euclid mission has passed its critical design review, marking the successful completion of a major phase in the progress of the project. The review verified that the overall mission architecture and detailed design of all its elements is complete, ensuring that it will be able to perform the unprecedented galaxy survey needed to tackle the mysteries of the dark Universe, and clearing the way to start assembling the whole spacecraft.Artist's impression of Euclid. Credit: ESA/ATG medialabThe critical design review (CDR) board meeting took place on 21 November in Noordwijk, the Netherlands. While the individual elements of Euclid - the spacecraft, scientific instruments, launcher, and the operational and science ground segments - had already passed their independent CDRs, the mission-level review focussed on the ensemble of all these elements and ascertained their capability to function together to accomplish the mission's goals. The review verified that the most realistic predictions of the combined performances are compliant with the mission requirements.The review also assessed the feasibility of Euclid's survey with the designed flight hardware, which will image billions of galaxies across the cosmos at unprecedented sharpness and sensitivity during a nominal mission period of six years.With the completion of this milestone that validated the whole project - from the spacecraft development to launch and operations, including also the observational methods and data analysis strategy - the assembly, integration and testing of the spacecraft flight model can begin. Immediately after launch, scheduled for June 2022, the ground segment will be ready to take over and start the operations to perform the groundbreaking sky survey. Скрытый текст: Integration of Euclid secondary mirror support structure. Courtesy of Airbus Defence and SpaceEuclid is a medium-class mission in ESA's Cosmic Vision programme to investigate the expansion of our Universe over the past ten billion years, probing cosmic epochs from before the expansion started to accelerate, all the way to the present. To this aim, Euclid will survey galaxies at a variety of distances from Earth, over an area of the sky covering more than 35 percent of the celestial sphere.By making use of both weak gravitational lensing, which measures the distortion of distant galaxies caused by intervening matter, and baryonic acoustic oscillations, based on measurements of the clustering of galaxies, the mission will capture a 3D picture of the evolving distribution of both dark and ordinary (or baryonic) matter in the cosmos. This will enable scientists to reconstruct the past few billion years of the Universe's expansion history, estimating the acceleration caused by the mysterious dark energy to per-cent-level accuracy, and possible variations in the acceleration to 10 percent accuracy.Integration of Euclid service module. Courtesy of Thales Alenia SpaceThe spacecraft consists of a service module - comprising all conventional spacecraft subsystems as well as the instruments' warm electronics units, sunshield and solar arrays - and a payload module. On the payload module, Euclid's telescope - a 1.2 m-diameter three-mirror 'anastigmatic Korsch' configuration - will direct the cosmic light to two instruments: the wide-field visible imager (VIS) and the near-infrared spectrometer and photometer (NISP).Notes for editorsEuclid is an ESA medium class astronomy and astrophysics space mission. ESA selected Thales Alenia Space as prime contractor for the construction of the satellite and its Service Module, with Airbus Defence and Space chosen to develop the Payload Module, including the telescope.The Euclid Consortium is a collaboration of nationally funded institutes responsible for the definition of the scientific mission and the provision of the scientific instruments and data processing.For further information, please contact:Giuseppe RaccaEuclid Project ManagerDirectorate of ScienceEuropean Space AgencyEmail: giuseppe.raccaesa.intRené LaureijsEuclid Project ScientistDirectorate of ScienceEuropean Space AgencyEmail: rene.laureijsesa.intImages And Videos[/li]Artist's impression of Euclid (http://sci.esa.int/jump.cfm?oid=60999)Integration of Euclid secondary mirror (http://sci.esa.int/jump.cfm?oid=60995)Integration of Euclid secondary mirror (http://sci.esa.int/jump.cfm?oid=60996)Integration of Euclid secondary mirror (http://sci.esa.int/jump.cfm?oid=60997)Integration of Euclid service module (http://sci.esa.int/jump.cfm?oid=60998 )Last Update: 18 December 2018
ЦитатаРакета "Союз" отправит телескоп Euclid на поиски темной материиМОСКВА, 29 сен - РИА Новости. Запуск европейского космического телескопа Euclid, предназначенного для поиска темной материи и темной энергии, ракетой-носителем "Союз СТ" с космодрома Куру во Французской Гвиане намечается в конце 2022 года, сообщило Европейское космическое агентство (ЕКА)."Euclid будет запущен с европейского космодрома во Французской Гвиане, стартовое окно открывается в конце 2022 года", - говорится в сообщении на сайте ЕКА.Контракт на запуск Euclid ракетой "Союз СТ" с Куру был подписан между ЕКА и компанией Arianespace в январе 2020 года. Тогда старт намечался в середине 2022 года, а в качестве резервной ракеты рассматривалась европейская Ariane 6.Телескоп Euclid, рассчитанный на шесть лет работы, будет искать следы существования темной материи и темной энергии - гипотетической субстанции, которая, как считается, ответственна за "ускоренное" расширение Вселенной....