Sign In
Learn bits
Science & Tech.
Mahesh

27/02/23 10:22 AM IST

Scientists discover fifth layer of Earth

In News
  • Researchers trying to uncover the secrets of Earth's geology have revealed the fifth layer of the planet.
About the discovery
  • So far scientists believed that there are only four layers in the earth.
  • They are the outermost layer called the crust, and the middle layer called the mantle.
  • And the innermost layer is called the core.
  • The core is divided into two parts namely the inner core and the outer core.
  • Recently, scientists discovered that there is another layer in the core.
  • Unlike the inner core and outer core, this new fifth layer is solid.
  • It may be 650 km in diameter. Scientists believed that the inner core of the earth is 2,440 km in diameter.
  • It is about 70% of the moon’s size. Also, it was believed that it was the hottest and densest of all layers.
  • However, this new layer is denser than the other two cores.
Significance of Core
  • The interaction between the inner and outer core creates and maintains the magnetic field of the earth.
  • While the inner molten material solidifies, they release an immense amount of heat.
  • This heat energy along with the convection current generated by the inner and outer core creates the magnetic field of the earth.
Source- India Today

More Related Current Affairs View All

10 Jan

Rural landowners in Delhi want repeal of Sections 33 and 81 of Delhi Land Reforms Act

'Both sections dealing with the use and sale of agricultural land have come under the spotlight ahead of the Delhi Assembly elections.' This can only be done by the Central gove

Read More

10 Jan

Pravasi Bharatiya Diwas

'Prime Minister Narendra Modi inaugurated the 18th edition of the Pravasi Bharatiya Diwas  in Bhubaneswar.' The event is held once every two years to “honour the cont

Read More

10 Jan

Deciphering the Indus script

'Recently, Tamil Nadu Chief Minister M.K. Stalin announced a $1-million prize for experts or organisations in the event of their success in deciphering the scripts of the Indus Val

Read More

India’s First Ai-Driven Magazine Generator

Generate Your Custom Current Affairs Magazine using our AI in just 3 steps