Earlier this year, researchers at NASA released an image of “sibling” galaxies “fighting” amongst themselves. It was a stunning image, as well as a reminder to call your siblings—or perhaps star in a ...

Scientists looked deep into the universe to find a structure that looked like two dancing ghosts. The "ghosts" are made up of electrons jetting out of "radio galaxies," the scientists found. The ...

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Scanning through data fresh off the telescope, we saw two ghosts dancing deep in the cosmos. We had never seen anything like it before, and we had no idea what they were. Several weeks later, we had ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Ray Norris, Professor, School of Science, Western ...