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Wednesday, November 26, 2025
TopicAstronomy

Topic: astronomy

What is 3I/ATLAS—the interstellar object that has baffled scientists

3I/ATLAS is the third interstellar object to be discovered. Before it, 1I/ʻOumuamua and 2I/Borisov were detected in 2017 and 2019, respectively.

Back to the future: Govt launches national contest to recreate India’s traditional astronomy tools

Indian Knowledge Systems division calls students & firms to recreate astronomical instruments mentioned in classical Sanskrit texts. Selected instruments could be showcased to startups.

Subrahmanyan Chandrasekhar’s stellar limit was called absurd. It got him 1983 Physics Nobel

No direct observations of any star exceed the Chandrasekhar limit. The theoretical physicist's calculations have helped so far to understand supernovas, neutron stars, and black holes.

Jayant Narlikar on a universe with no beginning, why sky is blue & the classic astronomy-astrology mix-up

In a 2015 'Walk the Talk' with Editor-in-Chief Shekhar Gupta, the legendary astrophysicist who died Tuesday explained his thoughts on Big Bang & how curiosity keeps a scientist young.

Amity school students witness rare planetary parade in Delhi—Saturn’s rings to Jupiter’s moons

Twenty students caught the celestial phenomenon despite fog and an AQI of 365.

Delhi is missing out on planetary parade due to pollution. Rest of India enjoys watch parties

When the planetary parade was at its best view in Kolkata, Bengaluru and Dehradun, the national capital recorded an AQI of 289. Light rain also impacted visibility in some parts of the city.

From heralding births of kings to spacecraft navigation, planetary parade’s over 2,000 yrs old history

By mid-February, Venus, Mars, Jupiter & Saturn, already visible to the naked eye, will be joined by Mercury, Neptune & Uranus in a rare 'planetary parade', officially called a syzygy.

Pune astronomers identify galaxy in Milky Way’s neighbourhood as ‘explosive factory’ of gamma rays

Kathryn’s Wheel was formed due to collision of 2 galaxies, but study published in The Astrophysical Journal Letters notes that star formation alone doesn't explain gamma ray emission.

India’s X-ray satellite system Daksha can settle the dark matter question

Daksha would be an invaluable tool to study flares from the Sun, X-rays from certain pulsating neutron stars, gamma-ray lightnings in the Earth's atmosphere, and so on.

North America prepares for total solar eclipse Monday. Wait for 2 years if you miss it

US will have clearest view, with Canada & Mexico also being able to sight phenomenon. Partial eclipse will be visible over northern parts of South America, Caribbean islands.

On Camera

Climate finance gap is widening. Rich nations still see it as charity 

Developed countries should take responsibility for their climate emissions. Instead, the instinct has been familiar: Protect your own first. This is now shaping the climate finance debate.

Vehicles, TVs, mobile phones—PM EAC report shows rural India is catching up with urban consumers

Rural ownership of motor vehicles jumped from 19 percent in 2011-2012 to 59 percent in 2023-2024, while urban rose from 40 percent to 68 percent during the same time period, study by two members of PM-EAC says.

General secrets from frozen peaks: A Kargil veteran reveals what politically correct writers left out

At the Jindal Literature Festival, Maj Gen (Retd) Lakhwinder Singh reveals secrets from 25 years ago, speaking about the decision that outwitted Musharraf and changed the course of the war. 

A tribute to Tejas. India’s delay culture is the real enemy in the skies

It is a brilliant, reasonably priced, and mostly homemade aircraft with a stellar safety record; only two crashes in 24 years since its first flight. But its crash is a moment of introspection.