The launch of NASA’s $10 billion James Webb Space Telescope from French Guiana would be a watershed moment in a storey that has enthralled thousands of astronomers for a generation.The most advanced telescope ever built, the James Webb Space Telescope, has arrived at its final destination in space. Now it is high time for scientists to have some fun.
Thirty days after launch, the tennis-court-sized telescope landed in a parking (L2), that is onemillion mile away from us. It will then embark on an ambitious mission to better comprehend the enigmatichistory of universe, peer at faraway explants and their atmospheres, and will contribute to large-scale concerns like how fast the universe is expanding and how it got birth.
Prior to the James Webb Telescope, the Hubble Space Telescope has been on a successful mission in space since 1990, it was launched into low earth orbit and has been performing admirably so far. It was not the first space telescope, but the largest and most flexible tool of its time before James Webb Telescope. JWT is known as a critical research instrument as well as a public relations bonanza for astronomy. Hubble telescope was created by Mr. Edwin Hubble.
The James Webb Space Telescope is a space telescope, on which NASA, the European Space Agency, and the Canadian Space Agency have collaborated.
The telescope is named after NASA Administrator James E. Webb, who served from 1961 to 1968 and was a key figure in the Apollo programme. In the future, the Hubble Space Telescope will be replaced by JWT as the mission of this powerful invention is to search for the mysterious origins of the cosmos. James Webb will use advanced cameras to capture infrared light from astronomical objects; it was launched on December 25, 2021by an Ariane-5 rocket from French Guiana.
JWT will explore the Universe primarily in the infrared, whereas Hubble focuses on optical and ultraviolet wavelengths (though it has some infrared capability). Hubble is in a very close orbit around the Earth, whereas JWT will be 1.5 million kilometres (km) away at the second Lagrange point (L2). The James Webb Space Telescope will be a hundred times more powerful than the Hubble Space Telescope as it will alter our perception of the universe ranging from birth to expansion of universe.
The JWT is the Hubble Space Telescope’s long-awaited replacement. For decades, the $9.7 billion space telescope had been under development and experiments in Lab.
Because of its orientation, JWT will never be able to look back at Earth, its moon, Mercury, or Venus. However, same telescope will be able to observe objects beyond Earth’s orbit in unparalleled detail over the period of a year. It’s designed to be 100 times more sensitive than the Hubble Space Telescope, with age of 32 years. The Webb telescope has a 6.5-meter-diameter primary mirror, compared to the Hubble’s 2.4-meter-diameter mirror; used to achieve these scientific research studies. As a result, it provides nearly seven times more capabilities to gather data, look back into the cosmos’s past.
The JWT is expected to be able to see more than 13 billion years into the past, to the time when the first stars were forming in the universe’s history. If you think about it, that’s quite amazing!The high sensitivity of JWT will allow it to identify and characterise comets and other ice things in the solar system’s farthest reach. While it high sensitivity will allow it identify and characterise comets and other ice bodies in the solar system’s farthest reaches.
L2 is The Lagrange points are points of equilibrium for small-mass objects under the influence of two giant orbiting bodies in celestial mechanics. In terms of mathematics, this entails solving the limited three-body problem, in which two of the bodies are massively more massive than the third.
These points, named after the Italian-French mathematician Josephy-Louis Lagrange, are specific regions in space where the gravitational forces of two things, such as the Sun and the Earth, form a region of strong attraction and repulsion and preserve equilibrium. This region can be employed by spacecraft to cut down on fuel required to maintain a constant position of JWT in L2. Now we’re one step closer to solving the universe’s riddles. And world is eagerly waiting to learn about the mysteries of universe!
Controllers intend to spend the next three months correcting the infrared telescope’s mirror segments and testing its equipment; positively they are now on the verge of mirror alignment, instrument activation, and commissioning, and the start of surprising and amazing discoveries. JWTis technologically more advanced than the famous Hubble Space Telescope and will be catching images of the universe’s very earliest stars soon. It will also investigate the atmospheres of planets circling stars outside of our solar system to see if they are habitable or even inhabited for lives or humanity to survive.
The light from the very first stars and galaxies is altered from visible to infrared wavelengths as they speed away from Earth. So, whereas the Hubble Telescope couldn’t see that light, which can be seen by JWT easily. The ground-breaking telescope will remain in a peculiar orbit around a point in space known as Lagrange Point 2 (L2), which will enable it to maintain its position in relation to the Earth and Sun. Being in that location protects it from extreme temperature swings and allows the JWT’s massive sun screen to filter heat from the sun. For the instruments to perform properly, the telescope must sustain constant super-cold conditions that can reach minus 370 degrees Fahrenheit.
The telescope will be nearly three stories tall when finished, with a mirror that is 21 feet wide – far too large to launch into orbit fully completed. Instead, it has been folded into a rocket and painstakingly deployed and commanded by a team from Earth. Though the month-long process had been nerve-wracking, everything appeared to have gone off without a hitch. The project, which began in the late 1980s and cost around $10 billion, has been in the works since then. The public will be able to see its first cosmic photos this summer.
The James Webb Space Telescope reached its ultimate destination roughly 1 million miles from Earth, marking the latest milestone for a tool that scientists hope will reveal unprecedented vistas of far-flung galaxies and new insights into the universe’s origins.
NOTE: JWT is now looping around an invisible point in cosmos known as an Earth-Sun Lagrange point.