Consider the following statements about James Webb Space Telescope (JWST): 1. It is the largest observatory ever launched into space. 2. It has been developed by NASA in partnership with the European Space Agency and the Canadian Space Agency. Which of the statements given above is/are correct?
Both 1 and 2
Understanding the James Webb Space Telescope (JWST) Statements
The question asks us to evaluate two statements concerning the James Webb Space Telescope (JWST), one of the most advanced space observatories ever built. Let's carefully examine each statement to determine its correctness.
Analyzing Statement 1: JWST's Size
Statement 1 says, "It is the largest observatory ever launched into space."
The James Webb Space Telescope is renowned for its massive primary mirror, which is made up of 18 hexagonal segments. When fully unfolded, this mirror has a diameter of 6.5 meters. This is significantly larger than the Hubble Space Telescope's primary mirror, which is 2.4 meters in diameter.
Considering its size and complexity, especially its large mirror enabling it to collect more light, the JWST is indeed considered the largest and most powerful space telescope launched to date. Therefore, this statement is correct.
Analyzing Statement 2: JWST's Development Partners
Statement 2 says, "It has been developed by NASA in partnership with the European Space Agency and the Canadian Space Agency."
Space missions of this scale and complexity often involve international collaboration. The James Webb Space Telescope is a prime example of such a partnership. NASA led the development of JWST, but the European Space Agency (ESA) and the Canadian Space Agency (CSA) made significant contributions. ESA provided the NIRSpec instrument, the MIRI instrument's optical bench assembly, and the Ariane 5 launch vehicle. CSA provided the Fine Guidance Sensor (FGS) and the Near-Infrared Imager and Slitless Spectrograph (NIRISS).
This statement accurately lists the key international partners involved in the development and operation of the JWST. Therefore, this statement is also correct.
Conclusion on JWST Statements
Based on the analysis of both statements:
- Statement 1, claiming JWST is the largest observatory launched into space, is correct due to its unprecedented size, particularly its large primary mirror.
- Statement 2, identifying NASA, ESA, and CSA as development partners, is correct as these agencies were the primary collaborators on the project.
Since both statements are correct, the option indicating "Both 1 and 2" is the correct answer.
Revision Table: Key JWST Facts
| Feature | Description |
|---|---|
| Primary Agency | NASA |
| International Partners | European Space Agency (ESA), Canadian Space Agency (CSA) |
| Mirror Diameter | 6.5 meters |
| Observing Wavelengths | Primarily infrared, with some visible light capability |
| Orbit Location | Lagrange Point 2 (L2) |
| Mission | Study planet formation, star formation, early galaxies, exoplanets |
Additional Information: Exploring the James Webb Space Telescope
The James Webb Space Telescope (JWST) is often referred to as the successor to the Hubble Space Telescope, though it observes the universe primarily in infrared light, allowing it to see through dust clouds and observe very distant, faint objects whose light has been stretched into infrared wavelengths by the expansion of the universe. Its location at the second Lagrange Point (L2), about 1.5 million kilometers from Earth, provides a stable thermal environment and a clear view of the sky.
The scientific goals of JWST include searching for the first galaxies or luminous objects that formed after the Big Bang, determining how galaxies evolved from their formation to the present day, observing the formation of stars and planetary systems, and measuring the physical and chemical properties of planetary systems, including our own, and investigating the potential for life in those systems.
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