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High levels of black carbon & Ozone due to forest fires turn Uttarakhand’s air lethal SECTIONS Share Synopsis By Friday, black carbon levels had gone from about 1,000-2,000 microgram per cubic metre last month, before the fires started, to 10,000-12,000 microgram per cubic metre of air. While forest fires always blaze through Uttarakhand around this time of the year, the scale of destruction this time around has been much larger. (This story originally appeared in on Apr 10, 2021)For days now the forests of Uttarakhand have been on fire, turning the air over the pristine hill state leth...

A group of astronomers have discovered a dozen quasars that have been warped by a naturally occurring cosmic 'lens' and split into four similar images. Quasars are extremely luminous cores of distant galaxies that are powered by supermassive black holes. This rare discovery increases the number of known quasars or quads by about 25 per cent and can help determine the expansion rate of the universe and help address other mysteries. Quadruply imaged quasars are rare, and the first quadruple image was discovered in 1985. Over the past four decades, astronomers had found about fifty of these "q...

Astronomers discover dozen quasars warped by naturally occurring cosmic 'lens' Astronomers discover dozen quasars warped by naturally occurring cosmic 'lens' A group of astronomers have discovered a dozen quasars that have been warped by a naturally occurring cosmic "lens" and split into four similar images. advertisement UPDATED: April 9, 2021 05:45 IST Quadruply imaged quasars are rare, and the first quadruple image was discovered in 1985. (Twitter/@esascience) A group of astronomers have discovered a dozen quasars that have been warped by a naturally occurring cosmic "lens" and split into ...

Last Updated: Wolf Rayet Stars: Four Indian Astronomers Trace Rare Supernova Explosion From Nainital Indian astronomers tracked a rare supernova explosion called Wolf Rayet Stars and discovered that it was one of the hottest kind of stars in the universe Indian astronomers have tracked a rare supernova explosion and traced it to be one of the hottest kind of stars. They are highly luminous objects a thousand times that of the Sun. They are called Wolf Rayet Stars and these are highly energetic explosion. A team of astronomers from Aryabhatta Research Institute of Observational Sciences i...

Four Indian Astronomers Trace Rare Supernova Explosion To Hottest Stars In Sky Indiatimes 3 hours ago © Provided by Indiatimes Indian astronomers have tracked a rare supernova explosion and traced it to one of the hottest sets of stars called Wolf–Rayet stars or WR stars, the Ministry of Science and Technology said in a statement. Supernovae (SNe) are powerful and luminous stellar explosions in the Universe releasing a monstrous amount of energy. Long-term monitoring of these transients opens the door to understand the nature of the exploding star as well as the explosion properties. It...