In 2020, physicists reported that the experimental dark matter detector XENON1T detected a strange signal. Authors
Dark energy is in cosmology a hypothetical form of energy that has negative pressure and evenly fills the entire space of the Universe.
There is also dark matter, which is notinteracts with light and almost its only manifestation is the gravitational effect on stars, galaxies and galaxy clusters. But it may happen that a particle of dark matter collides with a particle of ordinary mother. This way it can be detected using suitable equipment.
XENON1T is one of the versions of thisspecial equipment. This is a large tank filled with liquid xenon, which is stored deep underground. The idea was that if a dark matter particle were to pass through the tank, it would excite the xenon atoms. There will then be a flash of light and free electrons that can be detected by a set of sensors.
The detector recorded 52 unusual events at once. Scientists agreed that this activity was caused by a hypothetical elementary particle - the solar axion.
The authors of the new work refuted this theory andstated that too many solar axions would be needed to obtain such a signal. Instead, they suggest that the detector found dark energy. It turns out that with the help of the detector I wanted to find dark matter, but they detected dark energy.
The authors note that this information is not fully confirmed, so they continue to study similar events.
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