Prepared by: Mustafa Al-Zoubi
The Hubble telescope detected a group of sparkling globular clusters of stars in the “Pismis 26” galaxy in the constellation Scorpius, which is located 23,000 light-years from our galaxy. Astronomers from the Hubble Observatory estimate the age of one cluster to be 12 billion years.
Globular clusters are groups of stars bound together by mutual gravity, containing thousands of tightly packed stars. The constellation of Scorpio is characterized by the density of spherical stars in it that surround its black hole, in contrast to the number of planets.
Scientists explain that the clusters are distinguished by red and blue colors, and they attribute the reason for the dominance of the two colors to the overlap of short and long wavelengths, as dust is scattered by blue light of shorter wavelength, while red light of longer wavelength passes through it.
The spherical stars discovered in Pismis 26 are highly metallic, as they contain a high percentage of hydrogen and helium, the two most abundant elements in the universe.