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Without telescopes that collect these exotic types of light, we’d never see a huge chunk of the objects we know are floating out there. The red cloud in this picture, for example, was invisible to us until an infrared telescope stumbled across it and revealed this image: a dramatic region filled with ribbons of gas and dust. After its discovery, astronomers decided to look deeper into this thick cloud by using the ALMA telescope, which collects radio waves. Little did they know that they’d uncover a true mammoth star growing inside this dusty womb!
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