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Great new advances are expected in the next few years. With the first confirmed direct detection of gravitational waves, we look forward to a new era of gravitational wave astronomy, when the advanced LIGO antenna is joined by advanced Virgo to help define where in the sky gravitational waves have originated. We also anticipate developments in gravitational wave detection in space following the successful technology demonstration of LISA Pathfinder.

An increase of sensitivity by two orders of magnitude in dark matter searches, e.g. by the detector Xenon 1T, and an order of magnitude increase of sensitivity in what is called neutrino-less double beta decays for neutrino mass studies is also expected in the next few years.

The Cherenkov Telescope Array (CTA) observatory will bring new data on high-energy photons, while we also look forward to the completion of the first phase of the KM3Net high energy neutrino observatory and the start of the upgrade of the Auger observatory of ultra high energy cosmic rays.

In parallel, the large surveys of dark energy on ground (LSST) and in space (Euclid) are funded and in advanced stage of construction.

Αn important tendency of the astroparticle infrastructures is towards internationalization, since their size begins to exceed national or regional possibilities.

The future discoveries and corresponding theories that will be tested in the next decade or two include:

  • The harvest of high energy gamma-ray astronomy and the opening of gravitational waves, neutrinos and high energy cosmic rays astronomies
  • The understanding of the neutrino sector and its cosmological role
  • Theoretical and experimental progress in the dark matter quest, reaching close to the parameter limits of current theories (equation of state of dark energy, inflation potential)
  • Key research infrastructures in these three domains:

Multi-messenger study of the high energy universe
Neutrino physics