If you want to understand the atmosphere of a planet, it helps to think big. That’s just what climate scientist Dan Cziczo and his colleagues did recently when they created conditions in the world’s largest cloud chamber mimicking those in the thin veil of gases that surrounds Mars.
The ideas seem lifted from a James Bond super villain’s dastardly plot: carpeting the Earth with whitened clouds, constructing giant solar reflectors in space, using chemicals to change the makeup of the atmosphere. But with scientific models predicting potentially devastating changes in the world’s climate, seemingly impractical and improbable geoengineering solutions become more and more alluring.
The quest for evidence of life on Mars could be more difficult than scientists previously thought. A scientific paper published today details the investigation of a chemical in the Martian soil that interferes with the techniques used by the Curiosity rover to test for traces of life. The chemical causes the evidence to burn away during the tests.
Smart as the Mars Curiosity mission has been about landing and finding its own way on a distant world, the rover is pretty brainless when it comes to doing the science that it was sent 567 million kilometers to carry out. That has to change if future rover missions are to make discoveries further out in the solar system, scientists say. The change has now begun with the development of a new camera that can do more than just take pictures of alien rocks – it also thinks about what the pictures signify so the rover can decide on its own whether to keep exploring a particular site, or move on.
Picked up by Wired.com, Space.com, Yahoo News, CBS News, The Daily Mail, Huffington Post, RedOrbit, and others.
A claim by 1800s astronomer William Herschel, retold for 212 years by science authors and trivia lovers, says the Sun’s moods influence things here on Earth in a more immediate way. Herschel asserted that the number of dark splotches on the Sun, called sunspots, significantly affects the wholesale price of wheat grain.
Podcast about the creation of an iPad game aimed at helping children born with cleft palates improve their speech. Created in Adobe Audition and Audacity.
Infographic demonstrating how the speech recognition system works on an iPad game built to help children born with cleft palates improve their speech. Created in Adobe Photoshop.
Alexis sits on a blue chair in the middle of the room. “Hey, look at this book with us,” she parrots back to a therapist, squirming nervously. As the eight-year-old struggles to make the “b” sound in “book,” her voice trails off. Alexis was born with an opening between the roof of her mouth and her left nostril. Along with one in 700 newborns, she came into the world with a cleft palate. The scar from her reconstructive surgery has faded away, but her speech impediment is a constant reminder of how Alexis was born disfigured.
Feature article on an iPad game built to help children born with cleft palates improve their speech accompanied by infographic and podcast. Reviewed by the Knight Science Journalism Tracker.
Smartphones are a great way to check in on the latest weather predictions, but new research aims to use the batteries in those same smartphones to predict the weather. A group of smartphone app developers and weather experts created a way to use the temperature sensors built into smartphone batteries to crowdsource weather information. These tiny thermometers usually prevent smartphones from dangerously overheating, but the researchers discovered the battery temperatures tell a story about the environment around them.
Picked up by Washington Post, Wired.co.uk, Discovery News, MIT Technology Reviews, Slash Gear, CBS News, Telegraph, Gizmag, and others.
A lot of people mix up the ozone hole and global warming, believing the hole is a major cause of the world’s increasing average temperature. Scientists, on the other hand, have long attributed a small cooling effect to the ozone shortage in the hole. Now a new computer-modeling study suggests that the ozone hole might actually have a slight warming influence, but because of its effect on winds, not temperatures. The new research suggests that shifting wind patterns caused by the ozone hole push clouds farther toward the South Pole, reducing the amount of radiation the clouds reflect and possibly causing a bit of warming rather than cooling.
Picked up by LiveScience, Yahoo! News, Huffington Post, Nature News, NBC News, and others.