An asteroid is expected to pass between the Earth and the moon this evening.
Although it will not hit Earth, it could hit one of its surrounding satellites.
Space journalist and Astrophysicist Sarah Cruddas told Daybreak that scientists knew very little about asteroids.
She said studying them can help provide a better understanding as to why we came to be here on the Earth.
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Favourite Jessica Ennis-Hill is joined by last minute additions Tyson Fury and Andy Murray on the list of Sports Personality nominees.
Jenny Fry, 15, claimed she had electro-hypersensitivity (EHS) which caused her to suffer tiredness, headaches and bladder problems.
Mild in the south but colder in the north tonight and turning frosty and icy - before rain moves in.