Aliens Could Have 100 Eyes

Originally published in November 1854

Join Our Community of Science Lovers!


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


“Sir David Brewster, who supposes the stars to be inhabited, as being ‘the hope of the Christian,’ asks, ‘is it necessary that an immortal soul be hung upon a skeleton of bone; must it see with two eyes, and rest on a duality of limbs? May it not rest in a Polyphemus with one eye ball, or an Argus with a hundred? May it not reign in the giant forms of the Titans, and direct the hundred hands of Briareus?’ Supposing it were true, what has that to do with the hope of the Christian? Nothing at all. This speculating in the physical sciences, independent of any solid proofs one way or the other, and dragging in religion into such controversies, neither honors the Author of religion, nor adds a single laurel to the chaplet of the sciences; nor will we ever be able to tell whether Mars or Jupiter contain a single living object.”

Scientific American, November 1854

More gems from Scientific American’s first 175 years can be found on our anniversary archive page.

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe