This is a reading and listening worksheet about two asteroids that came near the Earth on 15 February 2013. One of them hit Russia. There are two newspaper articles about the events, I put them there just to give students some related vocabulary - or inform them if they are not keen on watching the news, which is very likely. The listening activities accompany the video that can be found here: http://www.ustream.tv/nasajpl2. You can play it from 3:30 to 6:30.