Narendra Sahu

The universe sometimes resembles a pot of boiling water. With enough heat, liquid turns to vapor: that's a phase transition. Something similar could have happened in the early universe: a field filling space suddenly changed its state, like water becoming gas.

In an underground laboratory beneath Sanford Mountain in South Dakota, a tank holding ten tons of liquid xenon waits for a dark matter particle to fly through it. Over 60 days of observation, the LZ detector registered a single nuclear recoil with an energy of 248 keV.