Posted on Nov. 26: All eyes on ALMA

McMaster astronomer Christine Wilson wants to see what others don't. To do that, she needs high-tech tools such as a complex telescope that uses radio waves to clearly uncover cold gases and dust between stars  research that will help her learn more about the universe. The McMaster astrophysicist's ability to conduct research on how stars, planets and galaxies formed received a boost Wednesday with the announcement of a $7.9 million investment from the Canada Foundation for Innovation (CFI) in the Atacama Large Millimetre Array (ALMA) in Chile. Wilson is the Canadian project scientist for the international $550 million (US) ALMA project, considered the most important development in radio astronomy in this decade. ALMA will be the highest altitude, full-time ground observatory in the world. This investment in ALMA is very important for the Canadian astronomy community, said Wilson. Not only will it help with infrastructure costs, such as buildings and access roads on the site in Chile, but it will also allow us to help develop the software for translating the raw data from ALMA into the images that scientists analyze. ALMA will be a single instrument made up of an array of 64 radio antennas (each 12 metres in diameter) that will work together as one telescope to study millimetre and submillimetre radio waves from space. The antennas can be repositioned so that the telescope can function as a giant zoom lens. The antennas must be kept cool and dry so the lab' for this research is Chile's Atacama Desert, a flat area located 5,000 metres above sea level in the Andes that hasn't had rain in years.

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