How do ESO’s infrared and (sub) millimetre wavelength telescopes help us study how stars form?
Stars form in dense clouds of the interstellar medium, but even in the densest of these regions the pressure is comparable to the most tenuous vacuum created in a laboratory on Earth. These clouds, where the temperatures are below -200 degrees Celsius are opaque in visible light, but transparent at longer wavelengths, like infrared, millimetre and submillimetre radiation. Telescopes such as VISTA, APEX and ALMA are vital for studying these cold, dense sites of star birth.
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