A falling asteroid briefly lit up the sky over the northern Philippines on Thursday. The bright fireball, which changed colour as it fell, was captured on video by observers in the northern Philippine province of Cagayan, some 300 kilometres north of Manila. ScienceKonek, a page on Facebook promoting science among young people, shared videos taken by residents in a number of towns in Cagayan. One of the videos showed the asteroid “burning bright into a greenish fireball” over Lal-lo town, ScienceKonek said in a post. “Based on ground reports we have received, the short-duration brightening of …