The two galaxies were targeted by astronomers using NOEMA, the Northern Extended Millimetre Array, in France. NOEMA is able to detect millimeter and submillimeter radio waves. Fascinatingly, the team, led by Chentao Yang of the Chalmers University of Technology in Sweden, detected emissions from a whopping 13 different molecules in these two galaxies.
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“We are seeing part of the electromagnetic spectrum that is hard to observe in nearby galaxies,” said Yang in a press statement. “But thanks to the expansion of the universe, the light from distant galaxies like these is shifted to longer wavelengths that we can see with radio telescopes observing [at] submillimeter [wavelengths].”
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