%2d outputs a decimal (integer) number that fills at least 2 character spaces, padded with empty space. %6.2f outputs a floating point number that fills at least 6 character spaces (including the decimal separator), with exactly 2 digits after the ., padded with empty space. Good for dollar and pound currency amounts.
Asteroid hurtles towards earth. Scientists were today, January 4th, 2014, warning of a possible asteroid collision with the Earth.
Apophis is a near-Earth asteroid that caused a brief period of concern in December 25-27, 2004, because initial observations indicated a relatively large probability (up to 2.7%) that it would strike the Earth in 2029.