Poem: ‘Mosses’

Science in meter and verse

Join Our Community of Science Lovers!

Edited by Dava Sobel

“In the Mojave Desert, a translucent crystal offers bryophytes much-needed respite from the heat of the sun.”
New York Times

For hypolithic mosses,
it seems,
four percent of daylight is right.
They live, the headline says,
by sheltering
under a parasol of translucent quartz.


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.


The crystal scatters
the light’s ultraviolet,
dilutes its heat,
traps the night’s condensed moisture
to moss-sized rain.

I think of these mosses
and consider.
Perhaps we, too, are mosses,
evolving to the parch
of our self-made Mojaves.

Unable to bear the full brightness,
the full seeing.

To recognize fully the Amazon burning,
the Arctic burning,
the Monarchs’ smoke-colored missing migration.

An experiment not meant to last.

And yet we found shelter within it,
we pondered our lives and the lives of others,
thirsted, slept.

To the implausible green of existence,
for-better, for-worse,
we offered our four-percent portion of praises,

for-better, for-worse
our four-percent portion of comprehension.

Jane Hirshfield, a member of the American Academy of Arts and Sciences, is a poet, essayist and translator whose work speaks to the crises of the biosphere, justice and interior life. Her 10th poetry collection, The Asking: New & Selected Poems, due from Knopf in September 2023, will include “Mosses.”

More by Jane Hirshfield
Scientific American Magazine Vol 327 Issue 5This article was published with the title “Mosses” in Scientific American Magazine Vol. 327 No. 5 (), p. 28
doi:10.1038/scientificamerican1122-28

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