Word: maps
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Dates: during 1980-1989
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...dusty pieces of galactic real estate that cannot be observed visually. State-of-the-art infrared detectors routinely fly aboard high-altitude balloons and reconnaissance aircraft, seeking evidence for heretofore unrecognized warm regions of space. Ultraviolet and x-ray spacecraft, perched in orbit far above Earth's opaque atmosphere, map distant sources of potent radiation emitted by previously unknown exotic astronomical objects; these are not merely passive probes like pioneering satellites that marked the dawn of the Space Age, but whole observatories remotely operated by teams of scientists, much like major ground-based telescopes. And robot spaceprobes navigate through...
Workers are starting to map out the five miles of steam tunnels, and Harvard plans to paint all the asbestos insulted areas...