Several Low-Earth-Orbit (LEO) networks were proposed, but only one got off the ground: the Iridium system. The original Iridium proposal called for a "constellation" of 77 satellites, which gave the plan its name: the element iridium has atomic number 77, meaning that an iridium atom has 77 orbiting electrons. Before the satellites were launched, the constellation was scaled back to 66 active satellites, but no one wanted to change the name to Dysprosium.
A NASA astronaut, forced to retire years earlier so he could save his family farm, has never given up his dream of space travel and looks to build his own rocket, despite the government's threats to stop him.
Joyous Exploration. This is the prototype of curiosity—the recognition and desire to seek out new knowledge and information, and the subsequent joy of learning and growing.
Deprivation Sensitivity. This dimension has a distinct emotional tone, with anxiety and tension being more prominent than joy—pondering abstract or complex ideas, trying to solve problems, and seeking to reduce gaps in knowledge.
Stress Tolerance. This dimension is about the willingness to embrace the doubt, confusion, anxiety, and other forms of distress that arise from exploring new, unexpected, complex, mysterious, or obscure events.
Social Curiosity. Wanting to know what other people are thinking and doing by observing, talking, or listening in to conversations.
Thrill Seeking. The willingness to take physical, social, and financial risks to acquire varied, complex, and intense experiences.