James Webb Space Telescope (JWST)

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Astronomers spot giant hidden 'bridge' 

& Record-breaking tail between 2 dwarf galaxies

By Harry Baker published 2 days ago

 

Researchers discovered a hidden 185,000 light-year "bridge" of gas between two distant galaxies, which are also trailed by a 1.6 million light-year galactic tail — the largest of its kind ever seen.

 

The dwarf galaxy duo, NGC 4532 and DDO 137, is located approximately 53 million light-years from Earth, right on the edge of the Virgo cluster of more than 1,000 galaxies. The pair is similar to the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC) — adjacent dwarf galaxies that closely orbit the Milky Way — but they are not bound to any single entity. Instead, they appear to be slowly falling into the Virgo cluster.

 

The mini galaxies were spotted by the Australian Square Kilometre Array Pathfinder (ASKAP) telescope in Australia, during the Widefield ASKAP L-band Legacy All-sky Blind Survey (WALLABY), which has been scanning the Southern Hemisphere's sky since 2022.

 

Article link:

https://www.livescience.com/space/astronomy/astronomers-spot-giant-hidden-bridge-and-record-breaking-tail-between-2-dwarf-galaxies

 

Pic Description: 

Researchers have uncovered a hidden bridge of gas, spanning more than 185,000 light-years, in between the dwarf galaxies NGC 4532 and DDO 137, which are located roughly 53 million light-years from Earth. Image credit: ICRAR and D.Lang (Perimeter Institute)

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Astronomers Heard the 7-Hour Death Rattle of a Star Being Eaten Alive

By Cassidy Ward 22 Oct, 2025, 3:10pm

 

How a black hole eating a star created the longest gamma-ray burst ever detected.

 

In the 1960s, the United States, the United Kingdom, and the Soviet Union signed a treaty banning nuclear weapons tests inside Earth’s atmosphere. Shortly thereafter, the U.S. Air Force launched the Vela satellites, 12 surveillance devices parked in Earth orbit. Their job was to look for gamma rays produced by the now-banned weapons tests.

 

Over the next several years, the satellites picked up 16 intense flashes of gamma radiation, but they weren’t coming from Earth. By 1973, astronomers had learned enough about these mysterious outbursts to publish the results. What became known as gamma-ray bursts (GRBs) are the most energetic and explosive events in the universe...

 

This particular cosmic explosion, detected July 2, 2025 by the Fermi Gamma-ray Burst Monitor and dubbed GRB 250702B, released a boat load of energy, enough that it should have been a rapid burst. Instead, it stretched on for a record-breaking seven hours. It beat the previous record by nearly three hours and had energy levels significantly higher than typical GRBs

 

Article link:

https://www.syfy.com/syfy-wire/how-a-black-hole-eating-a-star-caused-longest-gamma-ray-burst-ever#amp_tf=From %1%24s&aoh=17614725721002&csi=0&referrer=https%3A%2F%2Fwww.google.com&ampshare=https%3A%2F%2Fwww.syfy.com%2Fsyfy-wire%2Fhow-a-black-hole-eating-a-star-caused-longest-gamma-ray-burst-ever

 

Pic Description: 

A disk of hot gas swirls around a black hole in this illustration. The stream of gas stretching to the right is what remains of a star that was pulled apart by the black hole. A cloud of hot plasma (gas atoms with their electrons stripped away) above the black hole is known as a corona.

Bottom pic illustrates Gamma Ray burst.

 

Edited 20 hours ago by ➕👇 ꓤꓱꓷꓠꓵ🎵Tone