The European Space Agency (ESA) has decided the comet its Rosetta probe is planning to land on. But its targeted comet, 67P/Churyumov - Gerasimenko, seems to bit irregular.
It has been said so as the probe captured some images of the comet, which showed 67P to be appearing two objects and joined together. Scientists called it to be a contact binary. It is not known as what led the comet to have this type of form.