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A cosmic look back at the dawn of time

Analyzing remnants of light left over from the Big Bang with data beamed to Earth from an observatory nearly one million miles in space, a University of Miami physicist will help answer important questions about the origins of the universe and how it will continue to evolve.

UM astrophysicist Kevin Huffenberger is part of a multinational team of scientists who are analyzing data from the European Space Agency's Planck satellite, which is taking the most highly detailed and accurate measurements ever recorded of the cosmic microwave background, or the ancient light left over from the Big Bang.

As a middle school student growing up in Columbus, Ohio, Kevin Huffenberger developed a keen interest in cosmology, reading books by the British theoretical physicist Stephen Hawking and learning all he could about black holes, distant galaxies, and the nature of time.

But it was one topic, in particular, that captured his curiosity: how the universe developed after the Big Bang.

Today, as a University of Miami physicist, Huffenberger is still enthralled with how the universe came to be, only now he is part of a multinational endeavor that could very well provide definitive answers about its origin, development, and continued evolution.

He is one of the many scientists analyzing data from Planck, a European Space Agency (ESA) observatory nearly one million miles from Earth that will survey and map the entire sky until early 2012, taking precise measurements of fluctuations in the cosmic microwave background (CMB)—or ancient light from the fireball out of which the universe sprang into existence some 13.7 billion years ago.

“It’s always been part of our natural human curiosity to wonder where the universe around us came from,” says Huffenberger, an assistant professor of physics in UM’s College of Arts and Sciences. “This project will give us insight into that.”

Planck will specifically measure fluctuations in the CMB, which is encoded with a treasure trove of information from the hot, primordial soup of particles that eventually became our universe. With those measurements, scientists will get the clearest picture yet of the early universe, when it was a mere 380,000 years old.

The data will help them determine the large-scale properties of the universe; investigate the amount of dark matter, a mysterious, invisible substance scientists assume exists because of gravitational effects on visible matter; probe the properties of dark energy, which accounts for as much as 73 percent of the total matter-energy budget of the universe; find out what triggered the rapid expansion of the universe; study the origin of structures (galaxies, clusters of galaxies, and large voids); map, for the first time, the magnetic field spread throughout our own Milky Way; and observe distant galaxies and determine how they form stars.

“It will provide a data set that’s unprecedented in quality and scope,” explains Huffenberger, whose primary research is in developing reliable analysis techniques used in current and future experiments that measure the CMB. He started working on the Planck project when he was a postdoctoral researcher at NASA’s Jet Propulsion Laboratory, a partner in the mission, and he credits his undergraduate research in neutron stars and black holes as the most influential experience that led him to pursue an academic career in physics.

The Planck satellite is named for Max Planck, the German Nobel laureate who was one of the early pioneers in quantum mechanics. Equipped with a powerful telescope, it blasted off from ESA’s spaceport in Kourou, French Guiana, in May 2009, carrying the hopes of Huffenberger and the hundreds of other scientists, engineers, physicists, and astronomers who are collaborating on the project.

Huffenberger describes his role in the mission as small but important. He developed a portion of the data processing pipeline that calibrates the Planck telescope’s response to fluctuations in the cosmic microwave background.

The first all-sky image from the Planck mission, taken at millimeter wavelengths too long to be seen with the human eye. In the foreground, wispy shades of blue and white show faintly glowing gas and dust in our own Milky Way galaxy, which is associated with the production of new stars and solar systems. In cosmic terms, most of this dust is nearby, within a few 10,000 light-years. The faintly mottled orange and red background shows a far more distant feature, variations in the intensity of the cosmic microwave background, the faint afterglow of the Big Bang. This light has traveled about 13.7 billion light-years to reach us. Photo credit: European Space Agency.

He will also study and analyze data from far-away galaxies, which emit radiation like the Milky Way’s “but are so small and distant that their contribution could be mistaken for additional small-scale fluctuations, if not properly accounted for,” he explains.

And with UM postdoctoral associate Jan Kratochvil, he will study slight distortions in the microwave background measured by Planck. “As the light from the Big Bang travels to us, it is deflected by the gravitational attraction from matter it passes near,” says Huffenberger. “By looking for certain patterns in these deflections, we can learn about the distribution of matter as the universe developed from the Big Bang to the present day.”

Planck recently transmitted its first all-sky image, showing in one expansive view our own Milky Way galaxy and the universe as it existed 380,000 years after the Big Bang.

Scientists are using some of the fastest and most powerful supercomputers in the world to analyze the image and other data sent by Planck. But the first set of major results won’t be released until January or February of next year, according to Huffenberger.

But already the image, along with others released before it, have given astronomers and cosmologists new insight into the way stars and galaxies form.

“They make for some pretty compelling images, regardless of their scientific value,” says Huffenberger, whose research is being funded by NASA and UM’s Office of the Provost. “I was pretty amazed by the delicate structures that you can see in the distribution of wisps of dust. You’re left thinking, ‘That’s the universe we live in, and it has all of this structure to it that, before an instrument like Planck was built, you had no idea was there.’ It’s the first little taste of things to come.”

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CNN’s Soledad O’Brien visits UM


CNN anchor Soledad O'Brien, right, moderates the panel, which included, from left, Haitian activist Robert Duval; Cheryl Little, director of the Florida Immigrant Advocacy Center; Haitian author Edwidge Danticat; and Barth Green, professor and chair of neurological surgery at the Miller School.

Mired in poverty and disease since the day they were born, Haiti’s orphans now face a future made even darker by the lingering aftermath of a destructive earthquake that has left their country in ruins. To rescue them from a lifetime of hopelessness will take more than the adoption efforts of altruistic humanitarians.

Schools destroyed by the magnitude-7.0 temblor must be rebuilt and a health care system in shambles must be fixed if they and the Haitians they are intended to serve are to have any chance at a future.

Those were among the opinions expressed on the University of Miami campus Tuesday when CNN anchor and special correspondent Soledad O’Brien appeared at the Cosford Cinema to screen a portion of her new documentary, Rescued, on the plight of Haiti’s orphans, and to lead a subsequent panel discussion on what it will take to rebuild the Caribbean country. UM’s School of Communication and the Florida Immigrant Advocacy Center (FIAC) organized O’Brien’s visit.

By some estimates, there were some “380,000 orphans living in Haiti before the earthquake,” O’Brien said. But that number is surely much higher because of the catastrophe that claimed the lives of many adults, leaving their children without parents. The poorest of the poor, many of Haiti’s children fall victim to human trafficking and a restavek system of domestic servitude in which they live legally as slaves.

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UM Libraries Edible Books Festival serves up novel creations


Cristina Favretto, right, head of Special Collections, and two UM students admire "The House of Seven Cables," an entry submitted by Susan Zabowski.

Dozens of literature buffs eager to eat their words got their fill last Thursday at the University of Miami’s Richter Library as they sampled some of the newest acquisitions: manuscripts that tempted their literary tastes with titles like “Lord of the Fries” and “Paradise Lox.”

The UM Libraries’ first-ever Edible Books Festival, held on April Fool’s Day, served up a literary feast of “cooked books,” displayed buffet-style on three long tables in the library’s first-floor lobby,

The rules were simple: entries could look like a book, be related to a book character or scene, or represent a pun on a title—as long as they were edible.

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Peace Corps talks

During a Peace Corps informational session for University of Miami students, a group of returned volunteers, including UM President Donna E. Shalala, shared their experiences of living abroad and helping improve impoverished communities.

Peace Corps reunion: Rachel Mast, left, Southeast regional recruiter for the Peace Corps, with returned volunteers Greg Zell, a UM alumnus who served in Lagos, Nigeria, from 1962 to 1964; Doris Vincent (Venezuela, 1964 to 1966); Mark Aledda (Colombia, 1973 to 1975); Rosenstiel School graduate student Alyson Venti (Figi, 2004 to 2006); and UM alumna Michele Tsiknakis, who leaves for Guatemala in two months.

It was the waiting that made Michele Tsiknakis nervous. The recent University of Miami graduate had already filled out her Peace Corps application and gone through the rigorous screening and selection process. Now, she was just waiting for her assignment to arrive via overnight letter.

When it didn’t come at the expected time, Tsiknakis called FedEx to track its whereabouts.

Soon after that came the letter. Her assignment: Guatemala, where she will volunteer for the next two years as a health technician, helping residents of an impoverished village adopt effective and safe sanitation strategies while immersing herself completely in a different culture.

Tsiknakis leaves for Central America in about two months. But before her departure and the training that will precede it, she and a group of returned Peace Corps volunteers, including University of Miami President Donna E. Shalala, found time on Tuesday to speak to an audience of UM students about “an experience that changes your life forever,” Tsiknakis said.

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College of Engineering hosts groundbreaking meeting

A joint regional meeting of the National Academy of Engineering and the Institute of Medicine included presentations and a panel discussion on engineering innovations in health care.

University of Miami President Donna E. Shalala moderates the panel discussion on engineering health care innovation that included, from left, William Rouse, director of the Tennenbaum Institute at Georgia Tech; William Stead, associate vice chancellor for health affairs, chief strategy and information officer, and McKesson Foundation Professor of Medicine at Vanderbilt University; and Pascal J. Goldschmidt, senior vice president for medical affairs and dean of UM's Miller School of Medicine. Also on the panel was Van C. Mow, chair of Columbia University's Department of Biomedical Engineering.

On the same day that President Barack Obama and Congressional representatives met in Washington, DC to discuss health care reform, a historic gathering of a different sort—one composed not of lawmakers, but of scientists and scholars—convened on the University of Miami campus to address the issue from another perspective: how the field of engineering can help improve medical care for the benefit of all.

“When you think about the future of health care, there’s no question that the ideas, ideals, and capacities of engineering have a great deal both to offer and to gain from a closer collaboration with the counterparts in health care for improving health in our country and around the world,” Harvey Fineberg, president of the Institute of Medicine (IOM), told an audience of more than 300 people at UM’s Storer Auditorium on Thursday.

His comments were part of the first-of-its-kind joint regional meeting between the institute and the National Academy of Engineering (NAE). The summit, organized by UM College of Engineering Dean James M. Tien and Distinguished Research Professor Daniel Berg, featured scientific presentations by scientists and physicians—among them Miller School of Medicine Dean Pascal J. Goldschmidt—and a panel discussion, moderated by UM President Donna E. Shalala, that focused on the role of engineering in improving health care.

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