Now scientists are closer than ever to finding the answer thanks to this: Kepler is the most powerful planet hunter ever built and it’s making astonishing discoveries. And even finding new worlds like our own. Aliens: Are We Alone? Channel 5 2013
8KOI701: In early 2011 Keppler saw signs that it had not one but ... four: and this fourth planet was in the right place and the right size. ibid.
So it is at least possible that this new Earth-like planet could have animals with eight legs walking across its surface. ibid.
We will disappear into the blackness of the space from which we came. Destroyed as we began in a burst of gas and fire. The heavens are still and cold once more. In all the immensity of our universe and the galaxies beyond the Earth will not be missed. In the infinite reaches of space the problems of man seem trivial indeed. And man existing alone seems himself an episode of little consequence. That’s all. Rebel Without a Cause 1955 starring James Dean & Natalie Wood & Sal Mineo & Jim Backus & Ann Doran & Corey Allen & William Hopper & Rochelle Hudson & Edward Platt & Nick Adams et al, director Nicholas Ray, Planetarium
Holly tells me he’s sensed a non-human life-form aboard. Red Dwarf s1e1: The End s1e1, captain to crew, BBC 1988
We have been travelling through the galaxy now for three million years and there are many things we’ve discovered. The highest form of life in the universe is man, and the lowest is a man who works for the Post Office. Red Dwarf s1e5: Confidence and Paranoia, Holly
Additional: as the days go by we face the increasing inevitability that we are alone in a godless uninhabited hostile and meaningless universe. Still, you’ve got to laugh, haven’t you. Red Dwarf s2e1: Kryten
I can do no other than be reverent before everything that is called life. I can do no other than to have compassion for all that is called life. That is the beginning and the foundation of all ethics. Albert Schweitzer
Compassion, in which all ethics must take root, can only attain its full breadth and depth if it embraces all living creatures and does not limit itself to mankind. Albert Schweitzer
Man can no longer live for himself alone. We must realize that all life is valuable and that we are united to all life. From this knowledge comes our spiritual relationship with the universe. Albert Schweitzer
As soon as we touch the complex processes that go on in a living thing, be it plant or animal, we are at once forced to use the methods of this science [chemistry]. No longer will the microscope, the kymograph, the scalpel avail for the complete solution of the problem. For the further analysis of these phenomena which are in flux and flow, the investigator must associate himself with those who have laboured in fields where molecules and atoms, rather than multicellular tissues or even unicellular organisms, are the units of study. John Jacob Abel, Experimental and Chemical Studies of the Blood, 1915