The LFI continued to be used until science operations ended on 3 October 2013. Planck's large telescope collected the light from the Cosmic Microwave Background and focused it onto the focal plane of the scientific instruments on board.The primary mirror, 1.9 x 1.5 m in diameter, weighed only about 28 kg; the effective telescope aperture was 1.5 m. It was designed to be robust enough to withstand the 'shake-and-bake' stresses of launch, and the temperature difference between launch, when it was at an ambient temperature of about 300 K, and operation, at about 40 K.It was made of carbon-fiber-reinforced plastic and coated with a thin reflective layer (reflectivity >99.5%) of aluminium - so smooth that any bumps in the coating are less than 5 microns in size.
It was designed to fulfil the pointing and slewing requirements of the The satellite was successfully launched, along with the In January 2012 the HFI exhausted its supply of liquid helium, causing the detector temperature to rise and rendering the HFI unusable. Image credit: ESA/NASA/JPL-Caltech › Full image and caption This tone represents sound waves that traveled through the early universe, and were later "heard" by the Planck space telescope.

Both instruments can detect both the total intensity and polarization of photons, and together cover a frequency range of nearly 830 GHz (from 30 to 857 GHz). Launch: May 14, 2009 Status: Mission Completed . Planck was launched jointly with the Herschel Space Observatory aboard an Ariane 5 rocket, on May 14, 2009. The project was started around 1996 and was initially called The mission had a wide variety of scientific aims, including:The spacecraft carries two instruments: the Low Frequency Instrument (LFI) and the High Frequency Instrument (HFI).NASA played a role in the development of this mission and contributes to the analysis of scientific data. This is why Planck was strategically positioned at L2. The satellite is the most sensitive telescope ever designed to study the cosmic microwave background--the remnants of radiation from the Big Bang 13.8 billion years ago. https://sci.esa.int/planck. The cosmic microwave background spectrum peaks at a frequency of 160.2 GHz. Read More . Shortcut URL. Designed to study ancient radiation from the big bang, the Planck space telescope was a European Space Agency mission that aimed to better understand the origin of the universe and the formation of galaxies. After the successful conclusion of the First Survey, the spacecraft started its Second All Sky Survey on 14 February 2010, with more than 95% of the sky observed already and 100% sky coverage being expected by mid-June 2010.Some planned pointing list data from 2009 have been released publicly, along with a video visualization of the surveyed sky.On 5 May 2014 a map of the galaxy's magnetic field created using On 21 March 2013, the European-led research team behind the European cosmic microwave background observatory; medium-class mission in the ESA Science Programme

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