قالب وردپرس درنا توس
Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Space Photos of the Week: Reading the Universe in Infrared

Space Photos of the Week: Reading the Universe in Infrared



The human eye can process light wavelengths in the range of 380 to 740 nanometers. However, there is a whole lot of "light" that we cannot see. Cancel the fantastic telescopes! This week we will look at images of space that is filtered for the infrared spectrum – wavelengths of 700 nanometers to 1 millimeter. By filtering for infrared scientists are able to look through the visible things that enter the path, such as gas and dust and other materials, to see the heat, and there are many hot things in the space. This is why NASA has telescopes like Spitzer that orbit the Earth, looking at the infrared universe, showing us things that our distraught eyes could never see on their own.

Here's a space photo cool enough to be proud of Andy Warhol: This four-part series shows the Whirlpool Galaxy and its partner above, a satellite galaxy called NGC 5195. This series serves as a good example of how different functions can occur when cameras filter for different wavelengths of light. The far left image was captured in visible light, a remarkable scene, even though the galaxy is more than 23 million light-years from Earth. The second image adds a bit more: Visible light is shown in blue and green and bright red stripes are infrared – revealing new star activity and hot ionized material. Photo: NASA / JPL-Caltech
This infrared image of the Orion Nebula allows astronomers to see dust that is heated by star formation. The central light blue region is the hottest part of the nebula, and as the star factory byproducts are discarded, they cool and look red. Photo: ESA / NASA / JPL-Caltech
Cygnus X is a magnificent star complex containing about 3 million solar masses and is also one of the largest known factories of protostar. This image shows CygnusX in infrared light glowing hot. Bright white spots are where stars form, with red pots showing gas and dust ejection after birth. Photo by NASA Goddar

Source link