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Que. What is ‘Mini Neptune’ that was discovered recently?

  Mar 07, 2020

Que. What is ‘Mini Neptune’ that was discovered recently?

Ans.: 

  1. In a recent development, astronomers have found a potentially habitable exoplanet, which is more than twice the size of Earth. 
  2. The planet, named K2-18b, is located 124 light-years away from Earth and measures 2.6 times the radius and 8.6 times the mass of our planet. 
  3. It orbits its star within the habitable zone where temperatures could allow liquid water to exist.
  4. The K2-18b had been in the news last year as well when detection of water vapour in the planet’s hydrogen-rich atmosphere took place.
  5. However, the extent of the atmosphere and the conditions of the interior underneath remained unknown at that time. 
  6. It is possible for the K2-18b to host liquid water at habitable conditions beneath its hydrogen-rich atmosphere.

Practice Question
What are the pros and cons of Election Commission proposal to link voters’ Aadhaar numbers with the electoral roll?