ASU scientists play key roles in new NASA mission to Jupiter's moon Europa

May 26, 2015

Three scientists in Arizona State University's School of Earth and Space Exploration (SESE) – Philip Christensen, Mikhail Zolotov and Everett Shock – are involved with NASA's newly announced robotic mission to investigate whether conditions suitable for life exist at Jupiter's moon Europa.

The mission, scheduled for launch in the 2020s, will follow up on the results of NASA's Galileo mission of 20 years ago. That spacecraft found Europa to be an intriguing body. Its surface is a shell of ice perhaps a few tens of miles thick, covering a saltwater ocean. Europa Download Full Image

The icy surface has numerous colored cracks and spots, perhaps rich in salts, where the ocean water appeared and froze. Observations from Earth orbit using the Hubble Space Telescope have also revealed that Europa erupts plumes of water vapor a hundred miles high or more.

The payload of nine science instruments will greatly increase the limited knowledge of Europa, tackling challenges such as imaging the surface in high-resolution and determining the thickness of the moon’s icy shell and the depth of its ocean.

A thermal instrument will scour Europa’s frozen surface in search of thermal anomalies.

"This is a terrific opportunity for ASU and SESE," said Christensen. A Regents' Professor of geological sciences in SESE, he is the principal investigator for the Europa Thermal Emission Imaging System (E-THEMIS).

"The role E-THEMIS plays in the mission is to act as a heat detector," he explained. "It will scan the surface of Europa at high resolution for warm spots."

Such locations, Christensen said, could be places where the ice shell has become thin, and they are the most likely locations for plume activity.

The E-THEMIS instrument will be built at ASU using the engineers and facilities in SESE on the Tempe campus that are currently building Christensen’s OTES instrument for the OSIRIS-REx mission. ASU will do the instrument design, fabrication, assembly, test and calibration, along with mission operations and science data processing. Ball Aerospace will develop the electronics that will be integrated into E-THEMIS. 

"This plays perfectly into SESE's strengths in combining science with engineering," he says.

Shock and Zolotov, co-investigators for the MAss SPectrometer for Planetary EXploration/Europa (MASPEX), will apply their geochemistry expertise to interpret the results.

“In order to assess habitability of Europa, we will need to gather information about composition of surface materials and understand their relations with putative water ocean,” said Zolotov, who is also a co-investigator on the Radar for Europa Assessment and Sounding: Ocean to Near-surface (REASON) and SUrface Dust Mass Analyzer (SUDA).

The MASPEX and SUDA instruments will be used to sample Europa’s thin atmosphere, including plume emissions and small particulates of minerals and ice lofted into space.

“We anticipate lots of data, but the meaning of the data for the habitability of Europa will require additional experiments, calculations and theoretical modeling, which are major strengths of the combination of geochemistry, biochemistry and planetary science in SESE and at ASU,” Shock said.

The School of Earth and Space Exploration is a unit of ASU's College of Liberal Arts and Sciences.

Nikki Cassis

marketing and communications director, School of Earth and Space Exploration

Knight Foundation executive named innovation chief at ASU Cronkite School

May 27, 2015

Eric Newton, a global leader in championing transformational digital innovation in the news media as an executive of the John S. and James L. Knight Foundation, is joining Arizona State University as the innovation chief of the Walter Cronkite School of Journalism and Mass Communication.

Newton, who will hold the faculty rank of professor of practice, will work closely with the school’s leadership to drive new, cutting-edge ideas and initiatives at Cronkite News, the school’s multiplatform daily-news operation. Cronkite News will serve as a test bed for news-industry innovations and experimentation while providing critical content to news consumers in Arizona and across the country. Cronkite School innovation chief Eric Newton Download Full Image

Newton will continue to serve Knight Foundation as a consultant working on special projects and endowment grants. In his nearly 15 years at Knight, Newton expanded the foundation’s journalism and media innovation program, overseeing the development of more than $300 million in grants, $160 million of which went to universities for pioneering projects in journalism education. For the past four years, he has been senior adviser to Knight Foundation President Alberto Ibargüen.

“In the past decade, the Cronkite School has become one of the best, most innovative journalism schools in the country,” Newton said. “Now it has an ambitious goal: to transform journalism education – and to some degree journalism itself – with a stream of digital news experiments and inventions.

"This will be a built-out version of the teaching hospital model, with Cronkite News, a converged news organization in a major media market, as its platform. That’s a tremendously exciting challenge. If we are successful, we will do things in journalism education the likes of which the world has never seen.”

Newton developed grants for groundbreaking initiatives such as Poynter Institute’s News University, the largest online journalism training portal in the world, and Sunshine Week, an annual national observance of the importance of open government.

His work was central to the creation of the Carnegie-Knight Initiative on the Future of Journalism Education, a high-visibility consortium of leading journalism schools dedicated to transforming journalism education at the university level.

The initiative produced the landmark News21 program, headquartered at the Cronkite School, in which top journalism students from across the country investigate issues of national significance. Since its inception in 2006, nearly 500 journalism students have produced investigations that have captured numerous professional and collegiate awards and appeared in major outlets including the Washington Post, USA Today and NBC News.

In his new role at Cronkite, he will lead innovation projects at Cronkite News, the news organization that includes 15 full-time faculty editors and hundreds of students. Cronkite News includes a nightly television news broadcast on Arizona PBS; digital reporting bureaus in Phoenix, Washington and Los Angeles; a business reporting bureau; an entrepreneurial digital innovation lab; a digital production bureau; and a newsgathering and civic journalism bureau.

“Eric is an internationally recognized leader in the digital transformation of journalism over the past 30 years,” said Christopher Callahan, dean of the Cronkite School and CEO of Arizona PBS. “He also possesses a deep understanding of journalism schools and universities. I can’t think of a better thought leader to be driving disruptive innovation and experimentation in our Cronkite News journalistic teaching hospital.”

At Knight Foundation, Newton’s team launched in 2007 the nationally recognized Knight News Challenge, a media innovation competition that funds breakthrough ideas in journalism. The challenge, designed to open up digital media to innovative ideas from anywhere, went on to attract more than 10,000 applications and provide more than $37 million in funding to 100-plus projects.

“Eric’s tenacity, know-how, enthusiasm and love of journalism have helped drive our program into the 21st century,” Ibargüen said. “He also has been an extraordinary and imaginative counselor to me on many subjects. I'm sorry to lose my office mate, but I know that this is good for Eric and his family and great for Arizona State.  Since he will continue as an adviser to Knight, it's good for us, too."

Newton also led major initiatives totaling more than $10 million involving high school journalism, newsroom training and investigative reporting. He co-produced five national studies on how well high school students know and understand the First Amendment.

Prior to joining Knight Foundation, Newton was founding managing editor of the Newseum in Washington, D.C., leading the content team at the world’s first museum of news. He started his career at California newspapers. As city editor, assistant managing editor and managing editor of the Oakland Tribune, he helped the paper win scores of awards, including a Pulitzer Prize.

Newton wrote or edited numerous works on journalism, including “Searchlights and Sunglasses: Field Notes From the Digital Age of Journalism,” which doubles as an interactive textbook. He holds a master’s degree in international studies from the University of Birmingham in England and a bachelor’s degree in journalism from San Francisco State University.

Reporter , ASU News