Article original (va):
http://www.astronomy.com/news/2019/12/betelgueses-bizarre-dimming-has-astronomers-scratching-their-heads?utm_source=asyfb&utm_medium=social&utm_campaign=asyfb&fbclid=IwAR36H1BMPxUxram7m_aB4rsM3flKKQbhtw6KsyE1ywAWeGLl7-r8waOoUaA