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Professor Hiranya Peiris IOP Prize

Professor Hiranya Peiris recognised with prestigious physics prize

Professor Hiranya Peiris, Dr Helen Czerski and Professor Jennifer Thomas have been awarded medals and prizes by the Institute of Physics (IOP) for their outstanding, sustained and distinguished contributions to physics. More...

DESI Corrector

DESI corrector at UCL ready to be shipped

The Dark Energy Spectroscopic Instrument’s (DESI) wide field optical corrector has been fully assembled and tested at UCL and is due to be shipped to the Mayall telescope at Kitt Peak Observatory in Arizona for commissioning.
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UCL to lead European mission to study new planets

UCL is leading a multi-million pound European mission to study newly discovered planets after it was selected today as the next European Space Agency science mission. More...

Data on 400 million astronomical objects released

Scientists on the Dark Energy Survey (DES), which includes UCL Astrophysics Group (P&A) researchers, announce their first three years of data including information on about 400 million astronomical objects such as distant galaxies billions of light years away as well as stars in our own galaxy. More...

DESI corrector at UCL ready to be shipped

20 June 2018

DESI Corrector

The Dark Energy Spectroscopic Instrument’s (DESI) wide field optical corrector has been fully assembled and tested at UCL and is due to be shipped to the Mayall telescope at Kitt Peak Observatory in Arizona for commissioning.

This is the culmination of five years of work on DESI by the team at UCL. The corrector contains six lenses, the largest of which is 1.2m is diameter, and the whole assembly stands over 2.1m tall and weighs 2.4 tonnes. The lenses were installed and aligned at UCL to a precision of a few 10s of micrometres.

The DESI instrument will undertake a 5 year survey of 35 million galaxies. The primary scientific goal of the survey is to probe the origin of cosmic acceleration by employing the baryon acoustic oscillation (BAO) technique as a “standard ruler" to accurately measure the expansion history of the Universe.

Page last modified on 20 jun 18 14:24