Word: solarized
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Dates: during 1970-1979
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...through the work of the J.P.L. that we are now just beginning truly to explore our solar system, and through this exploration we will come to understand the uniqueness of our own earth...
...office, Urban Dweller returns to his rented apartment, flicks on the light-and watches as his sigh forms a frozen cloud in the indoor chill. The thermostat is controlled by his thrifty landlord. A woodburning stove is banned by his lease. Improved insulation, not to mention a solar water heater, is hardly on the tenant's list of options. So what does the city dweller do to keep warm...
Last week the space agency announced the award of $1.15 million contracts to Boeing and Lockheed for preliminary studies of a new rocket. Its purpose: to power an unmanned spacecraft that will intercept Halley's Comet as it sweeps around the sun. Known as the solar electric propulsion system, the engine could become the workhorse of deep space, carrying probes on far-flung missions across the solar system...
...engine is far more economical. With electricity generated by solar panels, it strips electrons off the atoms of vaporized mercury passing through a coffee-can-like chamber, converting them to ions. Expelled at high speeds in a focused beam, the charged particles act like a rocket exhaust, propelling the craft forward. Though its thrust is minuscule and far too feeble to lift payloads from the earth, the ion engine performs efficiently in the vacuum of space. It can function for years because it draws on solar energy and uses fuel sparingly. It can be stopped and restarted countless times...
...European Space Agency directly into the comet's head, which scientists believe is made up of icy debris and a smattering of organic molecules. Because comets have probably changed little since they were formed, data from the probe may reveal much about the early days of the solar system. Three years later, while swinging around the sun, the mother ship will rendezvous with a second comet called Tempel 2 and follow it for a year. During that time, it will continually observe all the changes the comet undergoes as it makes its fiery hairpin turn around...