Shiva & Shakti - ancient building blocks of Milky Way

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Scientists discovered two streams of stars "Shiva" & "Shakti", which formed Milky Way. They ware so ancient that they are likely formed over 12 billion years ago. Scientists reported that these two stream of stars stood out from the rest among stars of a certain chemical composition.

This discovery is achieved by analysing data from ESA’s Gaia space telescope.

Gaia is a space observatory of the European Space Agency (ESA), launched in 2013 and expected to operate until 2025. The spacecraft is designed for astrometry: measuring the positions, distances and motions of stars with unprecedented precision, and the positions of exoplanets by measuring attributes about the stars they orbit such as their apparent magnitude and color. The mission aims to construct by far the largest and most precise 3D space catalog ever made, totalling approximately 1 billion astronomical objects, mainly stars, but also planets, comets, asteroids and quasars, among others.

  1. The European Space Agency ( ESA )
  2. Max-Planck-Gesellschaft
  3. About Gaia - The European Space Agency
  4. Wikipedia

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