Lulin Comet

Vê o cometa Lulin ao início da noite (Portugal) | Vé el cometa Lulin al início de la noche (España) | See the Lulin Comet at evening (England)

Two tail comet Lulin - Image from APOD-NASA

Read the explanation in http://antwrp.gsfc.nasa.gov/apod/astropix.html