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Zero Shadow Day

In News At 12:17 PM IST on April 25, Bengaluru and at all places along the 130  north Latitude experienced a ‘Zero Shadow Day’. What is ‘Zero Shadow Day’(ZSD)? A ZSD is a day on which the Sun does not cast a shadow of an object at solar noon, when the sun will be exactly at the zenith position(highest point in the sky) ZSD […]

Active Volcano Found on Venus

In Context A new analysis of archival radar images taken around three decades ago has found direct geological evidence of recent volcanic activity on the surface of Venus. About Scientists made the new discovery by pouring over images of Venus taken by NASA’s Magellan spacecraft between 1990 and 1992.  During their examination, they looked at […]

Science behind the Similar Ridges on Salt Flats Worldwide

In News In a new study, researchers from Austria, Germany, and the U.K. have attempted an explanation for salt flats formations. About Salt flats across the world share a similar pattern of ridges that form in a patchwork of pentagons and hexagons. The pattern is always a meter or two across and occurs regardless of […]

Aubrite Meteorite

In News The Diyodar Meteorite that crashed in Gujarat in 2022 is a rare aubrite, seen in India just once before in 1852. About Aubrites are a type of meteorite that are coarse-grained igneous rocks formed in poor-oxygen conditions, and thus contain a variety of exotic minerals that are not found on Earth.  For example, […]

Cyclone Sitrang

In News Recently, Cyclone Sitrang made landfall in southern Bangladesh taking the death toll to 35 and millions other remained without power in the country. It is the first tropical cyclone of the post-monsoon season of 2022. It also helped Delhi record its cleanest post-Diwali air since 2015.  About Cyclone Sitrang  The name Sitrang has […]

Partial Solar Eclipse

In News Recently, for the first time in over a decade, a partial solar eclipse was visible in several parts of India on October 25. It also marks the last solar eclipse of the year.  About Solar eclipse  What is a solar eclipse? During a solar eclipse, the Moon passes between the Sun and the […]

Anang Tal Lake

In News Recently, the Anang Tal Lake in South Delhi has been declared a monument of national importance through a gazette notification by the Ministry of Culture.  Monuments of National Importance The Monuments of National Importance are designated by the Archaeological Survey of India (ASI).  The union government of India is authorised to maintain, protect […]

Tonga Volcano

In News Recently, the experts said that the Tonga volcano wave was 9 times taller than the tsunami in Japan. About the recent research 90 metres high The initial tsunami wave created by Tonga’s underwater Hunga Tonga volcano eruption in 2022 was 90 metres high. It was nine times higher than the tsunami recorded near […]

Kali Bein River

In News Recently, Punjab Chief Minister has been admitted to hospital, days after he had drunk a glass of water directly from River Kali Bein. About  Kali Bein is a 165-km rivulet that starts from Hoshiarpur. It runs across four districts and meets the confluence of the rivers Beas and Sutlej in Kapurthala.  Along its […]

Azores High

In News According to a new study, an extremely large ‘Azores High’ (a subtropical weather phenomenon) has resulted in abnormally dry conditions across the western Mediterranean, including the Iberian Peninsula, primarily occupied by Spain and Portugal. What is Azores High? Azores High is a subtropical high pressure system that extends over the eastern subtropical North […]