DEMON: a Proposal for a Satellite-Borne Experiment to study Dark Matter   and Dark Energy
  We outline a novel satellite mission concept, DEMON, aimed at advancing our comprehension of both dark matter and dark energy, taking full advantage of two complementary methods: weak lensing and the statistics of galaxy clusters. We intend to carry out a 5000 sqdeg combined IR, optical and X-ray survey with galaxies up to a redshift of z~2 in order to determine the shear correlation function. We will also find ~100000 galaxy clusters, making it the largest survey of this type to date. The DEMON spacecraft will comprise one IR/optical and eight X-ray telescopes, coupled to multiple cameras operating at different frequency bands. To a great extent, the technology employed has already been partially tested on ongoing missions, therefore ensuring improved reliability. 
Alicia Berciano Alba, Pedro Borges da Silva, Hans Eichelberger,   Francesca Giovacchini, Guenther Hasinger, Michael Lerchste...