• 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
  • Login
  • Register
Manifest IAS
JournalsOfIndia
Manifest Learning Academy
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
JournalsOfIndia
No Result
View All Result
Home Geography

Cosmic cannibalism

June 29, 2022
in Geography
Reading Time: 2 mins read
0
Cosmic cannibalism
476
VIEWS
Share on WhatsAppShare on TelegramShare on Facebook
image_pdfMake PDF
In news– The Hubble space telescope has for the first time viewed cosmic cannibalism in deep space where a star is eating its own planets.

What is cosmic cannibalism?

  • It is a cosmic phenomenon where a star is ending its life so violently that the dead star left behind, called a white dwarf, is disrupting an entire planetary system by sucking in debris from both its inner and outer reaches. 
  • The white dwarf star is consuming the rock-metallic and icy material, both of which are the “ingredients of planets”.
  • The researchers obtained the findings based on the analysis of material captured by the atmosphere of the nearby white dwarf star G238-44. 
  • A white dwarf is formed when a low-mass star like our sun exhausts most of its nuclear fuel. It is usually very dense and about the size of a planet.
  • These research findings are also interesting because icy objects are credited for crashing into dry rocky planets in the solar system and “irrigating them”. 
  • Such comets and asteroids are believed to have delivered water to Earth billions of years ago, thereby sparking the conditions necessary for life as we know it.
  • Current planetary system evolution theories describe the transition of a red giant star to a white dwarf as a chaotic process. 
  • These stars quickly lose their outer layers and the orbits of their planets change dramatically. Small objects like asteroids and dwarf planets can end up getting too close and sent plummeting towards the star.
  • This new study confirms the nature of this violent and chaotic phase and showed that within 100 million years after the beginning of their white dwarf phase, stars are able to simultaneously capture and consume material from regions similar to our asteroid belt and Kuiper belt. 
  • This white dwarf’s cannibalism presents a unique opportunity to allow scientists to observe what they were made of when they first formed around the star. The research team measured the presence of nitrogen, oxygen, magnesium, silicon, iron and other elements.
image_pdfMake PDF
Source: The Indian Express
Tags: NewspaperPrelims

Related Posts

Shaligram stone

Shaligram stone

February 4, 2023
Green comet appearing close to Earth after 50,000 years

Green comet appearing close to Earth after 50,000 years

January 25, 2023
The first evidence of the presence of solitary waves in Mars reported

The first evidence of the presence of solitary waves in Mars reported

January 18, 2023
Europe’s largest known deposit of rare earth elements found in Sweden

Europe’s largest known deposit of rare earth elements found in Sweden

January 14, 2023
Evidence of mantle plume beneath the surface of the red planet

Evidence of mantle plume beneath the surface of the red planet

January 14, 2023
Pineapple Express

Pineapple Express

January 12, 2023
What is a cold wave?

What is a cold wave?

January 11, 2023
Airglow can make sky green, yellow and red  colours

Airglow can make sky green, yellow and red colours

January 10, 2023
Tidal disruption event or destruction of a star by a black hole

Tidal disruption event or destruction of a star by a black hole

January 2, 2023
Joshimath in Uttarakhand is sinking

Joshimath in Uttarakhand is sinking

December 31, 2022
Please login to join discussion
JournalsOfIndia

Our vision is to orient the readers to grasp the facts objectively and analyse critically. In the rush of reaching first to the readers, the websites miss the balanced opinion, which is the need of the hour. We aim to reach the readers with more crispness, preciseness and relevance. We bring the articles in UPSC way for the civil services aspirants and the Wisest Way for general readers.

Categories

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tag

AIR All India Radio BBC Business Line Business Standard dow Down to Earth DownToEarth DTE Economic Times ET FAO Financial Express GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express Indiatoday India today Kurukshetra Livelihoods portal LiveMint Mains News News Paper Newspaper PIB Prelims PRS India RSTV Science Reporter Survey The Hindu The India Express The Indian Express The Print the wire Times of India TOI TOPPERS Yojana

Newsletter

The most important UPSC news and events of the day.

Get Journals daily newsletter on your inbox.

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

  • Login
  • Sign Up
  • Home
  • SNIPPETS
  • ARTICLES
  • BROWSE
  • DOWNLOADS
No Result
View All Result

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In