The James Webb Space Telescope (JWST) is a space-based infrared observatory designed to study the earliest galaxies, star formation, planetary systems, and the atmospheres of exoplanets. Launched on December 25, 2021, it represents one of the most ambitious and technically sophisticated scientific instruments ever built. It is operated by NASA in partnership with European Space […]
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The Sun is the star at the center of the Solar System, providing the light, heat, and energy necessary to sustain life on Earth. It is a nearly perfect sphere of hot plasma, primarily composed of hydrogen and helium, and generates energy through nuclear fusion. 🔑 Physical Characteristics The Sun’s enormous gravitational pull keeps the
The National Aeronautics and Space Administration (NASA) is the United States federal agency responsible for civilian space exploration, aeronautics research, and aerospace innovation. Established on July 29, 1958, by the National Aeronautics and Space Act, NASA succeeded the National Advisory Committee for Aeronautics (NACA) and quickly became the central institution for spaceflight, scientific discovery, and
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Hydrogen is a chemical element with the symbol H and atomic number 1, making it the lightest and most abundant element in the universe. It consists of a single proton and a single electron in its most common isotope, protium. Hydrogen plays a central role in cosmology, stellar physics, chemistry, energy systems, and biological processes.