Discover what exist in the universe
Origins and Aims The James Webb Space Telescope (JWST), a collaborative project by NASA, ESA, and CSA, aims to examine the universe's infancy, focusing on the first galaxies. These early structures provide insights into dark matter and dark energy, expanding our understanding of the universe's composition and evolution. JWST will […]
JWST's Location and Orbit The James Webb Space Telescope (JWST) occupies the L2 point, approximately 1.5 million kilometers from Earth. This location keeps the Sun, Earth, and Moon aligned, ensuring the telescope always faces away from these infrared sources. This positioning reduces thermal interference and maintains JWST's temperature at around […]
In the vast expanse of cosmic inquiry, the age of the universe stands as a central question that challenges our understanding of time and space. Through scientific rigor and curiosity, researchers continue to refine their models, seeking clarity amidst the intricacies of cosmic phenomena. Current Cosmological Models Current cosmological models […]
Understanding Cosmic Scale Examining the vastness of the universe reveals a spectrum from the infinitesimal to the immense. At the smallest scale, subatomic particles like quarks compose protons and neutrons, with sizes less than 10-15 meters. The theoretical Planck length at 10-33 meters marks the limit of our current understanding. […]
Discovery and Nature of Dark Energy The discovery of dark energy in 1998 revolutionized our understanding of the universe. Observations of Type Ia supernovae revealed an accelerating cosmic expansion, leading to the Nobel Prize-winning conclusion that an unknown force, dubbed dark energy, was at work. This enigmatic phenomenon accounts for […]
Design and Construction The James Webb Space Telescope (JWST) is a marvel of space engineering, featuring a 21-foot foldable mirror composed of 18 hexagonal segments. This ingenious design allows the telescope to fit into a rocket for launch before unfolding in space. The mirror segments are made from beryllium, a […]
Innovative Design and Engineering The James Webb Space Telescope (JWST) showcases cutting-edge design and engineering, revolutionizing our approach to observing the cosmos. Its standout feature is the large segmented mirror, spanning 6.5 meters in diameter and composed of 18 hexagonal segments. This mirror functions as a giant eye, gathering light […]
Exoplanet Atmosphere Analysis The James Webb Space Telescope examines the atmospheres of distant exoplanets, searching for potential signs of life. It analyzes starlight passing through these atmospheres, looking for chemical signatures. When a planet crosses between its star and the telescope, light filters through the atmosphere, and specific gases absorb […]
Sunshield Design and Function The James Webb Telescope's sunshield is an engineering marvel that keeps the telescope cool. Stretching to the size of a 20-car parking lot, this sunshade blocks heat and light from the Sun, Moon, and Earth. It consists of five layers, each no thicker than plastic wrap. […]
Design and Structure The James Webb Space Telescope's primary mirror is a marvel of engineering, composed of 18 hexagonal segments that assemble into a large optical surface after unfolding in space. Each segment is an aspheric freeform, designed to maximize optical performance. Made from gold-plated optical-grade beryllium, the segments are: […]
