Bizarre, Earth-sized rogue planet found floating in Milky Way | Fox News

Scientists have discovered another rogue planet, but this one has even experts perplexed: It’s slightly smaller than Earth and is floating through the Milky Way.

The potential exoplanet likely has a mass similar to Mars, researchers said in the study published on the arXiv.org repository. Though rogue planets (those without stars) have been discovered before, they’re extremely hard to spot.

“Our discovery demonstrates that low-mass free-floating planets can be detected and characterized using ground-based telescopes,” the study’s co-author, Prof. Andrzej Udalski, principal investigator of the Optical Gravitational Lensing Experiment (OGLE) project, said in a statement.

Source: Bizarre, Earth-sized rogue planet found floating in Milky Way | Fox News