Location(s) | Antarctica |
---|---|
First light | 29 December 2012 |
Telescope style | balloon-borne telescope cosmic microwave background experiment radio telescope |
Website | groups |
The E and B Experiment (EBEX) will measure the cosmic microwave background radiation of a part of the sky during two sub-orbital (high-altitude) balloon flights. It is an experiment to make large, high-fidelity images of the CMB polarization anisotropies. By using a telescope which flies at over 42,000 metres high, it is possible to reduce the atmospheric absorption of microwaves to a minimum. This allows massive cost reduction compared to a satellite probe, though only a small part of the sky can be scanned and for shorter duration than a typical satellite mission such as WMAP.
The first flight was an engineering flight over North America in 2009.[1] For the science flight, EBEX was launched on 29 December 2012, near McMurdo Station in Antarctica.[2][3] It circled around the South Pole using the polar vortex winds before landing on 24 January 2013 about 400 miles from McMurdo.[4]
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