A new era in the quest for dark matter

Since the 1970s, astronomers and physicists have been gathering evidence for the presence in the universe of dark matter: a mysterious substance that manifests itself through its gravitational pull. However, despite much effort, none of the new particles proposed to explain dark matter have been discovered. In a review that was published in Nature this week, physicists Gianfranco Bertone (UvA) and Tim Tait (UvA and UC Irvine) argue that the time has come to broaden and diversify the experimental effort, and to incorporate astronomical surveys and gravitational wave observations in the quest for the nature of dark matter.

Read more at: https://phys.org/news/2018-10-era-quest-dark.html#jCp

Tau.Neutrino said:

A new era in the quest for dark matter

Since the 1970s, astronomers and physicists have been gathering evidence for the presence in the universe of dark matter: a mysterious substance that manifests itself through its gravitational pull. However, despite much effort, none of the new particles proposed to explain dark matter have been discovered. In a review that was published in Nature this week, physicists Gianfranco Bertone (UvA) and Tim Tait (UvA and UC Irvine) argue that the time has come to broaden and diversify the experimental effort, and to incorporate astronomical surveys and gravitational wave observations in the quest for the nature of dark matter.

Read more at: https://phys.org/news/2018-10-era-quest-dark.html#jCp

Astronomical surveys have also drawn a blank. There have already been astronomical surveys for dark matter candidates of at least six sorts.

• MACHOs
• Free planets
• Gas and dust clouds
• Axions
• Micro black holes within the solar system
• Cosmic strings

None occur often enough to explain dark matter.

As for gravitational waves, not enough detected to search for dark matter.