A team of NASA scientists wants the search for technosignatures to gain more traction. Their white paper explains how upcoming missions can do it.
A mission concept poster for NASA’s LUVOIR telescope. LUVOIR will see in optical, ultraviolet, and infrared, making it a powerful and versatile telescope. Image Credit: NASA/GSFC
and optical beacons. “Optical beacons could provide a cost-effective means of directed communication between exoplanetary systems, which could be encoded and transmitted through rapid nanosecond pulses,” the paper states. LUVOIR could help with these, too, by placing “… constraints on the prevalence of optical beacons and other pulsed laser signals.”
This illustration shows what the Giant Magellan Telescope will look like when it comes online. Each of its seven segments is a 20-ton piece of glass. It’ll have unmatched imaging capabilities that will aid the search for technosignatures. Image: Giant Magellan Telescope – GMTO Corporation In 1960 Dyson published his paper “Search for Artificial Stellar Sources of Infra-Red Radiation.” As the title makes clear, IR radiation is key to detecting this type of megastructure. A Dyson Sphere would harvest an enormous amount of energy, an almost inconceivable amount, and the process would undoubtedly produce some waste heat. An FIR probe may not detect the waste heat because of the wavelengths involved, but it could rule out other FIR sources and streamline the search.
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