nasa

The Mega-Engineering of the James Webb Space Telescope: Beryllium Gold Mirrors, Kapton Sunshield, and the Optics Peering into Cosmic Dawn

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Explore the mega-engineering behind the James Webb Space Telescope. Learn how gold-coated beryllium mirrors, a 5-layer Kapton sunshield, and 7-Kelvin cryocoolers peer into cosmic dawn 1.5 million kilometers from Earth.

Beyond Chemical Rockets: Ion Thrusters, Solar Sails, and Fusion Propulsion to Reach Mars and Beyond

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Discover the advanced propulsion systems breaking chemical rocketry limits: ion thrusters, Nuclear Thermal Propulsion (DRACO), Direct Fusion Drives (DFD), and relativistic solar sails designed to reach Mars and beyond.