For example, one filter used in the image shown up top is for green light around 555 nanometers. When this is done, only light from a very specific wavelength range is let through. These color images are enabled by sliding a filter over the aperture of an instrument, like the WFC3 or ACS. However, color images from telescopes are indirectly possible with the use of filters. Raw images from telescopes are always in grayscale, only capturing the amount of light across a single, broad range of wavelengths in order to maximize the amount of light that is being collected. The ACS is designed to peer deep into the depths of space and locate galaxies and galaxy clusters in the remote and ancient Universe. The Wide Filed Channel, the High Resolution Channel, and the Solar Blind Channel. The instrument is comprised of three sub-instruments. Its wavelength range extends from the ultraviolet, through the visible and out to the near-infrared. The Advanced Camera for Surveys was installed during Mission 3B, which took place in December of 1999. The combination of both of these technologies provides WFC3 the ability to provide performance over a broad range of wavelengths. The NIR channel uses a 1 megapixel array. The UVIS channel uses a charged-coupled device (CCD) that is 16 megapixel, high sensitivity, low noise array. The instrument has two channels, one for ultraviolet light and visible light (UVIS) and the other for near infrared (NIR). WFC3 was installed during Servicing Mission 4 that took place in May of 2009. Those being the Wide Field Camera 3 (WFC3) and the Advanced Camera for Surveys (ACS). The degree to which the galaxy's structure is revealed is due to the capabilities of two instruments aboard Hubble. It showcases the complexity of the web of stars and dust at NGC-1097's center, which is located in the constellation Formax. The image above was captured by the ESA/NASA Hubble telescope on March 14th. The image captured by Hubble is actually that of NGC 1097, a spiral galaxy that is 48 million light years from Earth. In a separate event on Tuesday, NASA will release more images from the Webb telescope, including the observatory's first spectrum of an exoplanet, showing light emitted at different wavelengths from a planet in another star system. These types of observations could help scientists search for signs of life beyond Earth.The Hubble telescope looked deep into space and found a galactic eye staring right back. Since the universe is also expanding, light from the earliest stars and galaxies is stretched, shifting into longer infrared wavelengths undetectable by Hubble or the human eye. Infrared instruments are better suited for trying to detect the universe’s earliest stars and galaxies because the longer wavelengths of infrared light can pierce through dust and gas that might otherwise obscure some celestial objects. The Webb observatory's infrared “eyes” allow it to see distant stars and galaxies beyond the range of human sight and other telescopes, such as the Hubble Space Telescope, that see primarily visible light. Scientists have said that the James Webb Space Telescope could unlock mysteries from as far back as 100 million years after the Big Bang.
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