Chinese satellites discover mysterious signals in the universe

China's dark matter particle detector (DAMPE) has discovered mysterious and unexpected signals in high-energy measurements.

This new finding is expected to help scientists come closer to discovering light in invisible dark matter in the vast universe.

DAMPE measured more than 3.5 billion cosmic ray particles with the highest energy up to 100 tera-electron-volts (short TeV, equivalent to 1,000,000 times the energy of visible light), including 20 million particles carrying electrons and positrons, with unprecedented high energy resolution.

Mr. Chang Jin, Head of DAMPE, and Deputy Director of the Purple Mountain Observatory of the Chinese Academy of Sciences (CAS), said this is the first time a space experiment for spectral measurement results Electrons and positrons accurately detail up to 5TV.

Thereby, the scientists found a spectral disruption at 0.9 TeV and increased suddenly at 1.4 TeV.

DAMPE measured more than 3.5 billion cosmic ray particles with the highest energy up to 100 tera-electron-volts.(Illustration).

This is the facility that Mr. Chang Jin thinks exists that there is an unknown particle with a mass of about 1.4 TeV.

Judging from this finding, he judged that this data of strange signals is not enough, therefore, the scientific community needs to continue collecting more data to validate this finding, but he asserts: "DAMPE opened a new window in observing the high-energy universe, shedding light on new physical phenomena in addition to our current understanding."

Researchers have ruled out the possibility that abnormal signals are caused by a failure of the satellite detector. According to Mr. Chang Jin, independent analysis from five different groups came to the same conclusion.

Accurately measuring cosmic rays, especially in very high energy ranges, is an important factor for scientists in finding traces of destruction or decay of dark matter, as well as to Understand the most astronomical astronomical phenomena in the universe, such as active galactic nuclei and the explosion of new massive stars.

Scientists calculate that ordinary matter, such as galaxies, stars, trees, rocks and atoms, accounts for only about 5% of the universe. However, about 26.8% of the universe is and 68.3% of the universe.

Some reliable hypotheses suggest that dark matter is made up of weak interactive particles (WIMPs) . These particles are difficult to detect with the naked eye in the universe because they do not emit light, are easily destroyed by high-energy Gramma rays or charged particles.

For this reason, in December 2015, China launched a DAMPE satellite into a geostationary orbit at 500km above the ground in search of evidence of destruction or decay of dark matter particles in the air. time.

More than 100 Chinese scientists and engineers, along with people from Switzerland and Italy, were involved in developing DAMPE and analyzing its data.

Information on this initial findings has been increased in the scientific journal Nature.