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'Like a mermaid swimming through a sea of auroras': ISS astronauts photograph 2 comets dancing above the northern lights
"Comets Lemmon and SWAN soar millions of miles away from Earth, beaming with auroras and airglow, in these celestial images ...
A University of Arizona-led team has used a camera orbiting Mars to capture the closest images yet of a rare interstellar ...
Spectroscopy of other stars has led to most discoveries of exocomet systems. In research led by University of Colorado ...
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