🌐EnglishEnglishDeutschEspañolFrançaisItalianoPortuguêsРусскийفارسیहिन्दी한국어中文日本語EntityQ1376515· pop 17· linked from 147 articlesno-hair theoremtheoremAvailable in 17 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoहिन्दीHebrewConnectionsgravitational waveEntityEinstein field equationsEntityCategoriesBlack holesTheorems in general relativity