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 What are Blanets?

  • Blanets are a hypothetical class of exoplanets that orbit black holes directly. 

  • They are fundamentally similar to other planets.

  • They have enough mass to be rounded by their own gravity, but are not massive enough to start thermonuclear fusion and become stars.

  • The concept of blanets was first proposed in 2019 by a team of astronomers led by Keiichi Wada of Kagoshima University in Japan. 

  • They theorized that the dust clouds around supermassive black holes could provide the necessary environment for planet formation.

Formation of Blanets:

  • Similar to how planets form around stars, blanets are thought to form from the gravitational collapse of dust and gas swirling around black holes. 

  • Over time, dust particles collide and stick together, gradually forming larger and larger clumps. 

  • Eventually, these clumps become massive enough for their own gravity to pull in more material, and a planet is born.

Conditions for Blanet Formation:

  • However, not all black holes can host blanets. 

  • The key factor is the distance between the black hole and the dust cloud. 

  • If the dust cloud is too close to the black hole, the intense gravitational pull would tear it apart, preventing planet formation

  • Conversely, if the dust cloud is too far away, the gravitational pull wouldn't be strong enough to overcome the outward pressure of the gas particles, again hindering planet formation.



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Blanets UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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