A terrestrial-mass planet on the run?
Washington DC (SPX) Nov 22, 2020
Scientists have long believed that there may be billions to trillions of rogue planets drifting through our galaxy, unattached to any host star. A recent study has now identified one such candidate - potentially the first terrestrial-mass world we've spotted on the run. We've discovered more than 4,000 exoplanets in the last three decades, spanning a dramatic range of masses, sizes, temper