New Issue: Orbital Catastrophe Ahead? Read Now

Storybook Wishes for Martian Rovers

A hand-painted sundial will help Curiosity focus its cameras

Join Our Community of Science Lovers!

The Martian rovers Opportunity and Spirit have represented optimism, hope and even cuteness to millions of people dreaming about discoveries on the Red Planet.

How appropriate, then, that the newest rover, Curiosity, should carry a sundial with sentiments and illustrations worthy of classic children’s literature. Curiosity blasted off onboard an Atlas 5 rocket on November 26 and is currently heading for Mars with an August 2012 landing date.

The sundial doubles as the color-calibration target for the Mast camera (Mastcam) that will capture the Martian landscape. Its image will be transmitted from Mars to Earth many times, and students might use it to learn about the ways that such simple but elegant instruments can be used to determine the time, date, season and latitude on a planetary surface with atmospheric hues different from our own. And it will remain on Mars for the benefit of future space travelers.


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.


Among the messages and illustrations on the sundial is the name “Mars” written in 16 different languages, including ancient Sumerian and Inuktitut, around the edges.

The artist behind this creation is Jon Lomberg, who was Carl Sagan’s colleague and favorite artist and who has launched five message artifacts to Mars, with this sundial on Curiosity marking the fifth. Three others have made it, including the DVD he helped to curate entitled Visions of Mars, attached to the 2007 Phoenix lander. You can read more about the sundial on Lomberg’s blog at ­www.citizenofthegalaxy.com.

Like the other rovers before it, maybe one day Curiosity will become the stuff of legend and storybook dreams.

Subscribe to Support Independent Journalism

Great science journalism requires human expertise, time, effort and creativity. And it costs money. That’s why I and the journalists here at Scientific American hope you’ll join our community.

When you subscribe, you are supporting staff and freelance journalists who are passionate about telling science stories that are true, important and compelling. Our editors and reporters are often experts in their fields, which means they understand the nuances of big discoveries and can untangle the breakthroughs from the hype. With a subscription, you are also supporting rigorous fact-checking to ensure the words we publish are precise and accurate. And you’re supporting original illustrations, graphics and photos that bring you closer to an advanced laboratory, an ice sheet in Antarctica or a space mission in orbit. You’re helping us craft other types of high-quality journalism as well: Our newsletters are carefully written, edited and curated by staffers you have or will come to know and love. Our Science Quickly podcast is based on original reporting, collaboration with editors and scientists and exacting production.

Subscriptions keep this engine running so we can continue to deliver thoughtful, rigorous and independent science journalism to you. In an era of viral misinformation, this work is crucial. If you value what we do, I hope you’ll consider joining us as a subscriber

Thank you,

Jeanna Bryner, Editor in Chief, Scientific American

Subscribe