Drag sails are the simplest, most reliable way to deorbit small satellites and prevent space debris. Learn how they work, why they're mandatory, and which satellites use them today.
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The Rescue Agreement legally obligates nations to save astronauts in distress and return them safely. But with space tourism rising, outdated definitions and unaddressed costs threaten its effectiveness.
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The ITU manages global satellite spectrum and orbital rights through a complex filing system. Learn how countries and companies claim space, why paper satellites are a problem, and what’s changing in 2025 to make space fairer.
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Methalox engines using liquid methane and oxygen are replacing kerosene in modern rockets due to cleaner burns, lower costs, and unmatched reusability - making them essential for Mars missions and affordable spaceflight.
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EVA maintenance planning ensures astronaut safety during spacewalks by combining advanced tools, strict protocols, and exhaustive simulations. Learn how NASA plans every spacewalk to handle extreme risks in orbit and beyond.
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Spacecraft humidity control keeps astronauts safe by preventing condensation, protecting electronics, and recycling sweat into drinking water. Learn how NASA and private companies are making life support systems smarter and more efficient.
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Russian language training is mandatory for all non-Russian astronauts heading to the ISS. Learn why survival, not just communication, depends on mastering technical Russian for emergencies, docking, and life support systems.
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The ISS relies on a global network of ground stations and satellites to stay connected. From NASA's TDRSS to amateur radio contacts, learn how space communication keeps astronauts safe and science moving.
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Curiosity and Perseverance are NASA's most advanced Mars rovers, each with distinct missions. Curiosity proved Mars once had habitable conditions. Perseverance now searches for signs of ancient life and collects samples for return to Earth.
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Microgravity changes how materials form-crystals grow purer, metals solidify more evenly, and fibers lose less signal. Discover how space manufacturing is creating breakthroughs in semiconductors, medicine, and optical fibers-with real results from the ISS.
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Grazing incidence optics enable X-ray space telescopes to focus high-energy radiation by reflecting it at shallow angles. This technology powers missions like Chandra and the upcoming ATHENA telescope, revealing black holes and galaxy clusters invisible to optical telescopes.
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Water recovery systems on the ISS recycle urine, sweat, and humidity into clean drinking water at 98% efficiency-critical for future Mars missions. Learn how the technology works and what’s coming next.
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