In today’s lesson, entitled Earth Impact, you will be listening to a passage about the Chelyabinsk Meteor incident. You will also learn why astronomers are keeping a close eye on some space objects that may be on a future collision course with our planet. Listen carefully to the passage and then answer the questions that follow.

Answers are available on the KA Voicecast website as a separate track. Be sure to listen to the Key Vocabulary Words bonus track!