NASA found a "super-Earth" planet that has been emitting a mysterious sign for a few years

NASA found a "super-Earth" planet that has been emitting a mysterious sign for a few years<p>NASA has found the planet TOI-1846 b, which is nearly twice the scale of Earth and 4 instances extra large, emitting a repeating sign. The planet orbits a purple dwarf each 4 days, inflicting an odd dip in mild.</p>