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The flare intensified by a factor of 40 over several months, peaking at 30 times the brightness of any previous black hole flare and releasing energy equivalent to 10 trillion suns. (Image: Caltech)

‘Unlike any we've ever seen’: astronomers detect largest, most distant black hole flare ever

November 06, 2025 9:59 am

Biggest and Most Distant Black Hole Flare: This black hole flare is fading, indicating that it is still consuming a star with an initial mass of 30 times that of the sun.

Performing an analysis of the little red dots, the researchers suggested that, rather than being ancient, well-developed galaxies, little red dots may be vast spheres of dense and hot gas that look like the atmospheres of stars. (Image: Penn State University)

James Webb Space Telescope detects ‘little red dots’: What are black hole stars

September 17, 2025 10:31 am

Astronomers theorise that they are early galaxies that existed earlier than 700 million years after the Big Bang.

The cosmic microwave background, detected by chance in 1964, is the faint afterglow of the Big Bang - light that has traveled for nearly 14 billion years. (Image for representation: FreePik)

Galaxies flying away: How Hubble's redshift led us to the Big Bang

August 22, 2025 1:51 pm

From a telescope in California to a radio antenna in New Jersey, scientists uncovered the universe’s explosive origins.

The findings could upend long-standing theories about how black holes are born. (AI-generated image for representational purpose/FreePik)

James Webb Space Telescope finds rare figure-8 galaxy with a black hole forming at its heart

July 26, 2025 8:40 am

A figure-eight-shaped galaxy may hold the universe’s biggest secret: the birth of a supermassive black hole.

A visualisation of two massive black holes spiraling toward each other moments before merging. (AI-generated image: DALLE)

Scientists detect signals of biggest black hole merger

July 16, 2025 10:42 am

The detection of the gravitational waves from this event, which actually occurred billions of years ago, was made by the LVK network of observatories, involving the LIGO detector in the United States, Virgo in Italy and KAGRA in Japan.

A black hole is a region of space where gravity is so strong that nothing can escape — not even light. (Representational Image/Express Image)

Death of light: How Chandrasekhar predicted black holes

June 20, 2025 11:17 am

What began as a mathematical curiosity scorned by leading scientists has become the cornerstone of modern astrophysics, revealing that these 'impossible' black holes are actually the very engines that power the universe.

This black hole has been dormant for the last 20 years.

Scientists stumble across a massive black hole that woke up from slumber after 20 years

May 29, 2025 9:42 am

Located in the SDSS1335+0728 galaxy, which is around 300 million light years away, the massive black hole has been feeding on the gas around it, causing the galaxy to become one with an active galactic nucleus (AGN).

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First ‘black hole triple’ system discovered: What does it mean?

November 01, 2024 11:02 pm

The discovery of the system, located about 8,000 light years away from Earth (one light year is the distance light travels in a year, 9.5 trillion kilometre), has raised questions about how black holes are formed.

Detection of X-rays (purple) with NASA's Chandra X-ray Observatory, overlaid on a visible light image of the host galaxy.

ISRO's AstroSat, NASA's space observatories capture dramatic eruptions from stellar wreckage

October 11, 2024 10:38 am

The orbiting star is now repeatedly crashing through the debris disk, about once every 48 hours.

GMRT helps discover longest-ever black hole jets in a galaxy 7.5 billion light years away

October 07, 2024 5:08 pm

The study of supermassive black hole jets in radio galaxies has been an area where the Giant Metrewave Radio Telescope (GMRT), located 80 km away from Pune, has made several important contributions.