According to NASA, although the James Webb Space Telescope is well open in space, given its size, Space particles and debris will definitely hit it. The James Webb Space Telescope is now fully open in Space and is moving toward Lagrangian point 2. The process of opening the Telescope was controlled from the ground step by step, and in the meantime, the placement of parts such as the sun shield and the main mirror were very sensitive. The interior was well-designed and well-kept. But what happens if an external agent hits the web spacecraft? This is not far-fetched given the large size of the mirror and solar shield.
Part of the mission design
The James Webb is now fully open in space, and that's definitely a reason to celebrate after decades of hard work and a huge cost of $ 10 billion. As it orbits the Sun, it is likely to encounter Space debris in its path, which the mission team says is unavoidable.
James Webb Telescope Halo Orbit Around
Lagrangian Point 2 and Around the Sun
"There will be some small collisions with meteorites, and we know that Telescope mirrors will be damaged during the mission," said Michelle Thaller, a scientist at NASA's Goddard Space Flight Center. "
, One of the most probable collisions, part Space dust with a mass of less than 1 gram. "Despite these possibilities, and although the Telescope itself is really vulnerable, the mission team says it can most likely survive the damage," said NASA engineer Julie Van Campen. "Even if we assume that a piece of Space debris hits James Webb and breaks a mirror, it will still not be the end of the mission."
Has not been and the whole spacecraft is the same structure as seen. But if a meteorite causes part of the sunscreen to rupture, there are at least four more layers to protect the sun shield. "It's been part of our calculations for the lifespan of the web," he said. Unlike the Hubble Space Telescope, the Space shuttle went into orbit five times to repair and upgrade it from 1993 to 2009.
But fortunately there is another major difference: Hubble is in very high orbit The more turbulent, the Earth-orbit (LEO), is active, but the James Webb Telescope orbits the Sun at point Lagrangian 2 (L2). A place that forms a straight line with the earth and the sun, much farther from Hubble's position, and, as Thaler said, "is actually a good place to put a telescope, and a much cleaner place in terms of Space debris."
Close view of James Webb's golden mirrors
Credit: Northrop Grumman/NASA
NASA engineers have already considered this in the design of the telescope, and in some cases have considered backup equipment. Telescope mirrors, for example, are designed to be slightly damaged without affecting their scientific performance.
Primary and secondary web mirrors can withstand damage, even to the extent that part of the image is captured. Do not focus. Van Kempen likened this to the presence of a speck of dust in the eye. This particle may blur part of the vision, but still a large part is visible and enough to understand what the eye sees.
In addition, digital instruments can detect any small deviations that may be due to Damage caused by meteorites or other Space debris.
Such hazards exist for Hubble. Fortunately, although the Telescope has suffered little damage in its lifetime, none have been large enough to affect the telescope's ability to perform scientific operations or capture stunning images of the universe. The same is true for the James Webb Space Telescope.
NASA has set an ambitious goal, and the James Webb is expected to last at least 10 years. Even the precise launch by Ariana Space made it possible to double the length of the mission, but these numbers are limited by the fuel the Telescope needs to keep itself in orbit as well as launch its instruments.
The pressure on the mission team has now eased, and the engineers have accomplished a great feat as the Telescope opens. A very difficult process that took hundreds of steps. James Webb is now aligning his scientific instruments, and in the meantime, particles are not an initial concern, although Space debris and meteorites will always be a threat, despite precautions.
Cover: Graphic Design of the James Webb
Sources: Futurism, The Sun, Inverse
Source: GSM ArenaTags: nasa:, space, debris, definitely, hit, james, webb, telescope