Okuma AnlamaSoru #11109
JWST: A New Window to the Cosmos
The James Webb Space Telescope (JWST), launched in late 2021, represents a monumental leap in observational astrophysics. Unlike the venerable Hubble Space Telescope, which observed primarily in visible and ultraviolet light, JWST is optimized for the infrared spectrum. This allows it to penetrate obscuring cosmic dust veils and capture the faint, redshifted light emitted by the earliest stars and galaxies that formed shortly after the Big Bang. Stationed at the second Lagrange point (L2), approximately 1.5 million kilometers from Earth, JWST is equipped with a five-layer tennis-court-sized sunshield to keep its instruments near absolute zero, ensuring thermal noise does not distort delicate readings. What is the main topic of the passage?
- A)The life cycle of stars in the Milky Way galaxy
- B)The retirement of the Hubble Space Telescope and its failures
- C)The economic cost of building cryogenic mirrors in aerospace
- D)The technological capabilities and astrophysical mission of the JWST
- E)The difficulties of human spaceflight to Lagrange point L2
Cevabı ve çözümü göster
Doğru cevap: D) The technological capabilities and astrophysical mission of the JWST
Çözüm: Paragrafın ana konusu JWST'nin teknik üstünlükleri ve evrenin başlangıcını aydınlatma misyonudur. Doğru cevap D'dir.