This is the Comet Lulin first discovered two years ago, unlike other objects in the solar system that circle sun anticlockwise the lulin circles clockwise. From earth the optical illusion of the comets tail being in front as it approaches can be seen.
http://www.telegraph.co.uk/science/space/4782335/Chance-to-see-Comet-Lulin.html
a. Comets are usually made from _________
b. Comets have highly elliptical _______ compared to planets
c. Comets usually travel _________ than ________
d. Comets usually have long _______ , made when the heat from the Sun melts then vaporises the comet
