technology
In 2011, NASA sent a 100-square-foot solar sail into orbit; the thin reflective sheet flew without fuel
Science News: In a groundbreaking experiment, NASA's NanoSail D2 demonstrated solar sail technology by successfully deploying a lightweight reflective sail in low Earth orbit, marking a significant step towards environmentally friendly space travel.
A photo of the experimental solar sail, NanoSail-D. Credits - Wikimedia Commons
Spacecraft have historically relied on transporting their own fuel, a hefty and limited resource that restricts how long a mission can manoeuvre once in orbit. For a long... [3768 chars]
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