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Which among the following best describes Spektr-RG (SRG), recently seen in the news?
  • a)
    A robotic rover deployed to explore the Martian surface.
  • b)
    A high-energy particle collider built by CERN.
  • c)
    A space observatory to study the universe in the X-ray range.
  • d)
    An underwater research station studying marine life in the Pacific Ocean.
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which among the following best describes Spektr-RG (SRG), recently see...
Astronomers report the discovery of a new pulsar using the Spektr-RG space observatory.
About Spektr-RG (SRG):
  • Spektr-Rentgen-Gamma (Spektr-RG, SRG) is a German-Russian high-energy astrophysics space observatory to study the universe in the X-ray range of electromagnetic radiation.
  • It was launched in 2019 on a Proton-M rocket from the cosmodrome in Baikonur, Kazakhstan. 
  • It moves along a so-called halo orbit around the outer Lagrange point (L2) of the Sun-Earth system at a distance of 1.5 million km from the Earth with a period of about 6 months.
  • A Lagrange point is a position in space where the gravitational pull of two large masses precisely equals the centripetal force required for a small object to move with them.
  • Instruments:
  • The primary instrument of the mission is eROSITA, built by the Max Planck Institute for Extraterrestrial Physics (MPE) in Germany.
  • It is designed to conduct a seven-year X-ray survey, the first in the medium X-ray band less than 10 keV energies, and the first to map an estimated 100,000 galaxy clusters. 
  • This survey may detect new clusters of galaxies and active galactic nuclei.
  • The second instrument, ART-XC, is a Russian high-energy X-ray telescope capable of detecting supermassive black holes.
  • It is intended to replace the Spektr-R, known as the “Russian Hubble”. Spektr-R was launched in 2011 to observe black holes, neutron stars, and magnetic fields, aiding understanding of cosmic expansion.
Hence option c is the correct answer.
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Community Answer
Which among the following best describes Spektr-RG (SRG), recently see...
Space Observatory to Study the Universe in the X-ray Range
SRG, also known as Spektr-RG, is a space observatory designed to study the universe in the X-ray range. It is a joint project between the Russian space agency Roscosmos and the German Aerospace Center (DLR).

Key Points:
- SRG was launched in July 2019 with the goal of mapping the entire sky in high-energy X-rays for the first time.
- The observatory is equipped with two X-ray telescopes, eROSITA (Extended Roentgen Survey with an Imaging Telescope Array) and ART-XC (the Russian-German telescope), which will help in surveying the sky in unprecedented detail.
- SRG aims to observe and study a wide range of cosmic phenomena such as black holes, neutron stars, galaxy clusters, and dark matter.
- The data collected by SRG will provide valuable insights into the structure and evolution of the universe, helping scientists better understand the mysteries of the cosmos.
In conclusion, Spektr-RG (SRG) is a significant space observatory that will provide groundbreaking discoveries in the field of astrophysics by studying the universe in the X-ray range.
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Which among the following best describes Spektr-RG (SRG), recently seen in the news?a)A robotic rover deployed to explore the Martian surface.b)A high-energy particle collider built by CERN.c)A space observatory to study the universe in the X-ray range.d)An underwater research station studying marine life in the Pacific Ocean.Correct answer is option 'C'. Can you explain this answer?
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