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Person stands behind box and penguin.
Photo Courtesy: Jessica Meir
Jessica Meir works with an emperor penguin at a site known as Penguin Ranch near McMurdo Station during the austral summer of 2008. She and Christina Hammock, who also participated in the U.S. Antarctic Program, were both chosen to join NASA's astronaut corps last month.

Launching new careers

Former USAP participants land spots on latest astronaut class

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Antarctica is a huge continent — but it’s a relatively small world when it comes to those who have lived and worked on that frozen land.

Yet Christina Hammock and Jessica Meir External U.S. government site never met. That’s not entirely surprising. Hammock worked mainly on the science support side of the U.S. Antarctic Program (USAP) External U.S. government site, helping to maintain a suite of scientific instruments at South Pole and Palmer External U.S. government site stations. Most of Meir’s time on the Ice involved studying the diving physiology of emperor penguins near McMurdo Station External U.S. government site at a site on the sea ice known as Penguin Ranch.

But they’ll get a chance to compare notes on their Antarctic experiences later this summer in Houston. Both were among the eight candidates selected to join the NASA astronaut corps External U.S. government site last month.

“I think it’s awesome,” Hammock said of the inclusion of two USAP participants in the 21st astronaut class. Only 338 people have been selected since 1959, when NASA picked seven military pilots as the first U.S. astronauts.

Person works on instruments.
Photo Courtesy: Christina Hammock
Christina Hammock uses a particle accelerator to test an instrument for the NASA Juno Mission to Jupiter while working as an electrical engineer at the Johns Hopkins University Applied Physics Lab.
Auroras illuminate night sky.
Photo Credit: Alistair McNoe
As the cryogenics tehnician at South Pole, Christina Hammock delivers liquid helium to an experiment in the dead of winter when temperatures can plunge below minus 100 degrees Fahrenheit.
Person looks down from a tower.
Photo Credit: Sonja Wolter
Christina Hammock replaces an instrument on one of the scientific towers at Summit Station in Greenland.

“The USAP was an amazing program for me. It gave me a lot of opportunities,” Hammock said during a telephone interview from American Samoa, where she is the station chief for a NOAA External U.S. government site atmospheric observatory that is part of the Earth System Research Laboratory’s Global Monitoring Division (GMD) External U.S. government site.

“I think [Antarctica is] a great analog for the space program and for the whole concept of exploring the frontiers through science. It definitely gave me the confidence that I needed to move forward in my other jobs, and also to do the application [to NASA]. I feel like I owe so much to the USAP.”

Hammock first worked at the Amundsen-Scott South Pole Station during the 2004-05 summer and then wintered over at the research facility in 2005. She was the cryogenics technician, a position that oversees the liquid helium supply that helps cool super-sensitive sensors on telescopes used to explore the universe from the bottom of the world.

She was the first woman to hold that job, as well as the first woman at Palmer Station in 2006-07 to work as a research associate, an assignment that involves overseeing a variety of scientific experiments at the small marine research base.

An electric engineer with graduate degrees from North Carolina State University External Non-U.S. government site, Hammock has also worked at the top of the world, supporting research in Greenland and later serving as NOAA station chief for a GMD observatory in Barrow, Alaska. That was also around the time that she applied to NASA.

“I wanted to be an astronaut my whole life,” said the 34-year-old. “I’ve always been drawn to science — any kind of science on the frontier has always fascinated me, and that’s where I wanted to be.”

The posters on her wall as a kid were of two things — Antarctica and outer space. “I made a point of following those two things throughout my career,” Hammock said.

She’s already had an opportunity to work with the U.S. space agency at the John Hopkins Applied Physics Lab External Non-U.S. government site back in 2007-10 on several projects, including NASA’s Juno mission External U.S. government site. Juno launched a spacecraft to Jupiter in August 2011 to learn about the origin and evolution of the solar system’s largest planet. Hammock also did a stint at NASA Goddard Space Flight Center External U.S. government site from 2001-04 working on earth-orbiting telescopes.

“I’ve been really lucky that some of the things I’ve worked on have launched into space,” she said. 

Meir, 35, had similar dreams of far away places since she was at least five years old.

“I think one of the things is just the feeling of wanting to be in space and looking back at Earth and seeing our whole planet and everything that you’ve ever known beneath you in its entirety like that,” she said from Boston, where she is currently an assistant professor at Harvard Medical School/Massachusetts General Hospital External Non-U.S. government site

That childhood wish first sent her to NASA as early as an undergraduate at Brown University External Non-U.S. government site when she participated in a six-week program at Kennedy Space Center External U.S. government site in Florida called the Space and Life Sciences Training Program External U.S. government site.

During her senior year at Brown, she and a few other students submitted a proposal for NASA’s Reduced Gravity Student Flight Opportunities program External U.S. government site. The team’s experiment was selected to fly on NASA’s KC-135 aircraft, which creates brief periods of microgravity, or weightlessness, by flying in a parabolic pattern.

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