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DAILY NEWS ANALYSIS
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06 April, 2021
5 Min Read
Indian astronomers from Aryabhatta Research Institute of Observational Sciences have tracked a rare supernova explosion and traced it to one of the hottest kind of stars called Wolf–Rayet stars or WR stars.
The rare Wolf–Rayet stars are highly luminous objects a thousand times that of the Sun. They strip their outer hydrogen envelope which is associated with the fusion of Helium and other elements in the massive core.
Supernova
Supernovae can be triggered in one of two ways:
Type I supernova or Type Ia supernova
The difference between Nova and Type I supernova
|
Nova |
Type I supernova |
|
In a nova, the system can shine up to a million times brighter than normal. |
A supernova is a violent stellar explosion that can shine as brightly as an entire galaxy of billions of normal stars. |
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As long as it continues to take gas from its companion star, the white dwarf can produce nova outbursts at regular intervals. |
If enough gas piles up on the surface of the white dwarf, a runaway thermonuclear explosion blasts the star to bits. |
Type II supernova
Importance of supernova: Creating and dispersing new elements
In the supernova explosion, all of these elements are expelled out into space, and new stars are born out of this matter.
Source: PIB
05 Apr, 26
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04 Apr, 26
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03 Apr, 26
Maritime chokepoints are narrow channels along global shipping routes where maritime traffic is concentrated. These points are geopolitically and economically critical, as they handle a large proportion of global trade, especially energy shipments. Current Relevance Over two-thirds of seaborne energy trade passes through a handful o
01 Apr, 26
Following the launch of Operation Epic Fury (U.S.) and Operation Roaring Lion (Israel), the geopolitical landscape has shifted fundamentally with the confirmed death of Iran’s Supreme Leader, Ayatollah Ali Khamenei.Iran retaliated through Operation True Promise 4, launching missile attacks against Israel and nearby Gulf states. The escala
05 Apr,2026
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