The James Webb Space Telescope launched on December 25, 2021. It took six months after launch to reach its final orbit, as it opened its massive gilded mirror and solar sail. The mirror has a diameter of 6.5 meters, which is three times larger than the diameter of the Hubble Space Telescope.
The solar sail is 21.2 meters wide and 14.3 meters high, which protects the telescope from the heat and sunlight. Thus, the temperature of the telescope drops to -233 ° C, which makes it possible to detect infrared radiation.
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the James Webb Space Telescope It includes four science instruments: the Near Infrared Camera (NIRCam), the Near Infrared Spectrometer (NIRSpec), the Mid-Infrared Instrument (MIRI) and the Near Infrared Astronomical Interferometer (NIRISS).
These instruments help the telescope examine a variety of phenomena in the universe, such as the atmospheres of exoplanets, the first lights after the Big Bang, black holes, and dark matter. The telescope will also be able to reveal details we haven’t seen before.
The telescope is named after James E. Webb, who was the second administrator of NASA from 1961 to 1968 and who played a major role in the development of space exploration. In addition to NASA, the European Space Agency (ESA) and the Canadian Space Agency (CSA) are also involved in the telescope project.
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now ScienceAlert He wrote that NASA could announce a huge discovery, as one of the oldest galaxies in the universe was found using the James Webb Space Telescope.
This object was observed as it appeared only 390 million years after the Big Bang. Detecting and observing early galaxies is not really an easy task, the most popular method is based on the redshift. Image You can view it by clicking here.
What’s really amazing is that light from the Macy’s galaxy traveled for 13.4 billion years before James Webb discovered it.
