January 22, 2022

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James Webb Space Telescope: How will it beat the Hubble Space Telescope?

The James Webb Space Telescope is ready for launch, ushering in a new generation of space exploration. Some even refer to it as an alternative to the Hubble Space Telescope, so in what ways does the James Webb Telescope excel?

The Hubble Space Telescope was launched in orbit in 1990. For three decades, this space telescope has brought us amazing images of the universe and expanded our understanding of the universe around us, the portal wrote. Live Science. At the same time, the Hubble telescope has shown us that the universe can be a place full of color. The James Webb Telescope will launch on December 24 and will operate slightly differently than the Hubble telescope.

The space telescope has a huge golden mirror and can see the universe in the infrared spectrum. The telescope is specifically designed to see objects 100 times darker, Which enables it to capture the Hubble Space Telescope. The US space agency, NASA, promises that the images captured by the James Webb Telescope are stunningly detailed.

As mentioned, the James Webb Telescope is often referred to as an alternative to the Hubble Space Telescope. Although it has been in operation for more than thirty years, it does not belong to scrap metal. However, NASA said it would not invest in repairing it in the event of a critical failure. However, the Hubble Space Telescope continues to operate and will work in conjunction with the James Webb Telescope, In expanding our cosmic horizons.

Visualize the universe in a different spectrum

The Hubble Space Telescope is relatively close, in low orbit. The James Webb Telescope will go much further. It will operate at a distance of 1.5 million kilometers from the Earth’s surface at a point known as Liberation Point 2. This is the point at which the body maintains the same distance from the two cosmic bodies, in this case the Earth and the Sun.

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At the same time, it should be noted that although in both cases they are space telescopes, The way they see the universe is completely different. The Hubble Space Telescope modeled the universe in the optical and ultraviolet spectra. The James Webb Telescope will look at the universe around us primarily in the infrared spectrum.

“Seeing the universe in the infrared spectrum would certainly be great, but we can’t predict what the resulting images will look like. The James Webb Telescope is the first of its kind,” said Klaus Pontopedan, who works on the James Webb Telescope project.

He adds that we have very different images from what the Hubble Space Telescope has given us so far. When we look at the universe using infrared light, the stars are darkening in the background, While the nebulae glow brighter.

Left shot in the visible spectrum to the right in the infrared spectrum. Source: NASA

The James Webb Telescope will look at the universe at wavelengths With a range of 600 nanometers up to 28 microns. Hubble Space Telescope It operates at wavelengths from 200 nanometers to 2.4 microns. Visible light ranges from 400 nm to 700 nm.

Although the James Webb Telescope will not be able to capture the entire visible spectrum, It must be able to perceive the red to orange portion of the visible spectrum.

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