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The Dragonfly telescope is pushing the boundaries of small-scale observational astronomy. With a 14-centimeter aperture, one Canon lens wouldn’t reveal much: It would take weeks of nightly exposures just to collect enough light to make out the kind of dim objects the cosmologists hoped to see. And that was assuming perfect weather and no technical hiccups. But what if they added more lenses? By imaging galaxies through multiple lenses simultaneously, like a dragonfly’s compound eye, they could capture fainter structures in less time, while also correcting for errors.
by Dragonfly on 2016-01-30
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