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Edward Bell is Contributing Art Director at Scientific American and served as Art Director at the magazine for fourteen years. He writes, edits, narrates, and produces interactive multimedia videos and graphics for science-based websites at his studio, Matrix Design.


Ron Miller is a Hugo Award-winning illustrator and author. His work has appeared in National Geographic, Scientific American, Smithsonian, Air & Space, Sky & Telescope, Newsweek, Discover, and more. He served as Art Director for the National Air & Space Museum's Albert Einstein Planetarium. His work has appeared on scores of book jackets and in book interiors, including definitive editions of 20,000 Leagues Under the Sea and Journey to the Center of the Earth.


Mariette DiChristina is Editor in Chief of Scientific American, which won the National Magazine Award for General Excellence in 2011. She is a Fellow of the American Association for the Advancement of Science, and is a former president of the National Association of Science Writers. DiChristina is a frequent lecturer and has appeared at the New York Academy of Sciences, California Academy of Sciences, 92nd Street Y in New York City, Yale University, and New York University among many others. She was honored by the National Organization of Italian American Women as one as one of its "Three Wise Women" of 2009.


Kristen Casazza is an independent filmmaker based in New York City.

Davide Castelvecchi is the former physical sciences and mathematics editor at Scientific American, and writes the mathematics and physics blog Degrees of Freedom at ScientificAmerican.com. He holds a Ph.D. in mathematics from Stanford University and a degree in science writing from the University of California, Santa Cruz. He has written for Science News, New Scientist, Sky & Telescope, and National Geographic News.

John Chambers is a faculty member at the Carnegie Institution for Science in Washington, DC. He is a theoretical astrophysicist. His main research interests are the origin and evolution of the Solar System and extrasolar planets.

Jen Christiansen is the art director of information graphics at Scientific American. She has also worked as an art director and designer for National Geographic, and as a freelance artist, specializing in scientific illustrations for a variety of magazines and textbooks.

James F. Kasting is Distinguished Professor of Geosciences at Pennsylvania State University. The author of How to Find a Habitable Planet, Kasting is a renowned expert in planetary atmospheric evolution. He is actively involved in the search by NASA for habitable planets outside our solar system.

Nancy Kiang is a biometeorologist and astrobiologist at the NASA Goddard Institute for Space Studies in New York City. She conducts research on how the biosphere and the atmosphere interact on Earth, and how use of light energy by photosynthesis might evolve differently on planets orbiting other kinds of stars.

Lawrence Krauss is the Foundation Professor in the School of Earth and Space Exploration at Arizona State University, and director of the Origins Project there. His most recent book is Quantum Man: Richard Feynman's Life in Science, and his upcoming book A Universe from Nothing will be released in January 2012. He is a member of Scientific American's Board of Advisors.

John Matson is a reporter for Scientific American who covers astronomy and physics for the magazine's website.

Steve Mirsky is Scientific American's podcast editor. He hosts the magazine's "Science Talk" program and produces its family of podcasts, including "60-Second Science."

George Musser is the space and physics editor at Scientific American. He is author of The Complete Idiot's Guide to String Theory and winner of the 2010 Jonathan Eberhart Planetary Sciences Journalism Award from the American Astronomical Society.

Eric R. Olson is a producer, editor and correspondent for Scientific American and other Nature Publishing group titles. He has a degree in biochemistry from the University of Washington in Seattle and a master's degree in science journalism from the Science, Health and Environmental Reporting program at New York University.

Caleb A. Scharf is Director of Columbia University's Astrobiology Center, and the author of Extrasolar Planets and Astrobiology and Gravity's Engines (forthcoming from Scientific American/Farrar, Straus and Giroux). He writes the Life, Unbounded blog, named one of the "hottest science blogs" by The Guardian, and has written for New Scientist, National Geographic, Science, ScientificAmerican.com, Nature, and more.

Sara Seager is the Ellen Swallow Richards Professor of Planetary Sciences and Professor of Physics at the Massachusetts Institute of Technology.

Antígona Segura is a researcher at the Universidad Nacional Autónoma de México. She holds a master's degree in astronomy and a PhD in Earth Sciences. Her research focuses on gases that are produced mainly or only by life that may be remotely detected on planets around other stars indicating the presence of life.

Dave Spiegel is a postdoctoral researcher in the Department of Astrophysical Sciences at Princeton University and will be a postdoctoral fellow at the Institute for Advanced Study in September 2011.

Anton Zeilinger is a professor of physics at the University of Vienna, where he heads the Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences. He is the author of Dance of the Photons (Farrar, Straus and Giroux, 2010) and is a member of Scientific American's Board of Advisors.


Brandwidth is an award-winning digital agency based in the UK with 10 years of experience producing content for mobile platforms. Creative design and user experience are at the heart of their apps, which include Guinness World Records: At Your Fingertips, Headspin: Storybook, Top 100 Albums, and F:sh, and forthcoming projects with Random House, Warner Music, BBC Worldwide, and global car manufacturers. For more information, see www.brandwidth.co.uk.


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"An out-of-this-world pick for its wealth of information, rich media and interactive projects for budding astronomers." — Marc Saltzman, USA Today

"Journey to the Exoplanets turns your iPad into a starship. What an amazing app!" — Allen Steele, award-winning author of Coyote and Hex

"[Journey to the Exoplanets] makes learning about our planet and planets beyond a fun and galactic experience...The perfect app for the aspiring astronomer." — Fox News, Tapped-In podcast

"A nifty new app...Journey to the Exoplanets takes exoplanets out of the realm of fuzzy dots on your screen and into mind-blowing images territory..." — Gizmodospan>

"A satisfying blend of science and speculation, information and interaction." — Charlotte Abbott, USA Today

"Journey to the Exoplanets has many features to captivate audiences of all ages and skill levels. Users can create their own virtual exoplanets, view 3D diagrams of the twenty stars nearest to our solar system, study the timelines and charts of exoplanet discoveries, perform virtual experiments and much more." — Astrobiology magazine

"[Journey to the Exoplanets] boasts SciAm's bulletproof, up-to-date explanations of the hunt for planets outside our solar system - as well as gorgeous visualizations of what these alien worlds might actually look like... Let's face it, it's sometimes hard to get excited about yet another fuzzy, indistinct blob in a black frame. The Kepler telescope, and NASA's other ambitious exploratory efforts, need all the help they can get these days in winning hearts and minds (and dollars)-and Journey to the Exoplanets is a worthy step in the right direction." - John Pavlus, Co.Design

"The app has broad appeal. For science and science fiction fans, Miller's beautiful portraits of dozens of extrasolar planets bring back fond memories of days spent studying the astronomical art of Chesley Bonestell and Ludek Pesek...[E]xtends beyond beauty and visuals to conceptual tools that allow users to play with the very principles of 'planet building.'" — Greg Bear, Tor.com

"[Journey to the Exoplanets] is smooth and well put together. A good amount of interactivity is present while still remaining informative for adults. At the same time, there is also a variety of ‘Junior Scientist' style exhibits for younger readers (or older) to participate in...If you or someone you know is a science lover, especially concerning the cosmos, it is certainly worth taking a look at." — allyourgamesbelongtous.wordpress.com