Vikas Engine and Oumuamua Comet Discovery (Download PDF)

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A family of liquid fuelled rocket engines. Powers India՚s launch vehicles PSLV and GSLV. Improving the payload capability of PSLV, GSLV and GSLV Mk-III launch vehicles. Used in second stage of PSLV which consists of four stages in its operation (Solid-Liquid-Solid-Liquid) and in second stage and four strap-on stages of GSLV? The improved thrust of the Vikas engine is expected to boost the rocket engine.

  • Main beneficiary (high-thrust Vikas engine) - GSLV-Mark III launcher expected to lift 4,000-kg satellites to space.
  • GSLV-Mark III-Uses twin engine core liquid stage (L110) .

Oumuamua Comet Discovery

  • Hawaiian for-a messenger from afar arriving first.
  • Was first spotted on October, 2017.
  • Recently scientists discovered that this object is to be a comet.
  • Oumuamua (oddly-shaped, about 800 m long) was racing through space at the time of its discovery.
  • Dark and faint, with no visible ‘coma’ .

Difference as Compared to Other Comets

  • Nucleus is probably similar to comets of our Solar System.
  • The dust grains have to be larger than typical for other Comets.
  • The tail is typically made of fine dust lifted off the nucleus and dragged away by the emitted gas.
  • Dust is invisible because it՚s made of larger grains, that are too heavy to be lifted off by the gas.
  • Very difficult to detect the gas as the specific molecules (water, CO and CO2) are difficult to see in optical images.

- Published/Last Modified on: March 19, 2020

Science/Technology

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