Latest three-dimensional map of the universe

Astronomers have just completed a three-dimensional space map of the largest and most detailed type ever.

Previous versions could only determine the positions of galaxies seven billion light-years from Earth. This time, the new version records the map of hydrogen clouds 10 to 12 billion light-years from Earth. This helps astronomers find a solution to the nature of dark energy.

Space researcher Anze Slosar (Brookhaven Laboratory), one of the scientists involved in introducing 3D maps at the American Physical Society meeting, in Anaheim, California, said: ' We are looking in the data. to know how fast the universe is expanding '.

Thanks to a multi-purpose telescope system designed to be a Baryon (BOSS) spectral oscilloscope monitoring system, researchers can analyze light from each quasar. According to Slosar, quasars are very far-reaching objects whose center is a black hole with a strong attraction, which can swallow surrounding matter, and emit enormous energy.

Light from quasars concentrates into rays. On the way to Earth, these rays are absorbed by hydrogen gas, then light emits back into rays of different wavelengths, forming a very specific spectrum of spectra for each quasar. Because the rays pass through space and time, scientists can use the beam's spectrum to estimate whether the cloud is shrinking or expanding over time.

Currently, the cooperative group is analyzing 14,000 out of 160,000 quasars. In 2014, scientists hoped they could cut classes of 50-60 thousand quid enough to know the fate of the universe.