Matching Pairs ATEROIDSOnline version B2 UPPER INTERMEDIATE by MIRYAM AIMEE PEREZ SANTIAGO 1 hazardous 2 infrared 3 an asteroid 4 to pick up 5 to log 6 an orbit 7 to track 8 to be unaccounted for a kind of light humans can’t see without special glasses dangerous to notice to be in an unknown location to record or make note of something to follow the movement or progress of something a rock that flies through outer space the path of an object around a planet