James Webb telescope finds 'remarkable' evidence that a black hole plowed through a galaxy, leaving an enormous scar behind

Live ScienceWednesday, October 8, 2025 at 5:02:39 PM
PositiveScience
James Webb telescope finds 'remarkable' evidence that a black hole plowed through a galaxy, leaving an enormous scar behind
Astronomers using the James Webb Space Telescope and ALMA have made a groundbreaking discovery of a superlong and narrow 'galactic contrail' that suggests a black hole has passed through a galaxy, leaving a massive scar. This tail of gas and dust stretches an astonishing 20,000 light-years long but is only 650 light-years wide. This finding is significant as it enhances our understanding of black holes and their impact on galaxy formation and evolution.
— Curated by the World Pulse Now AI Editorial System

Was this article worth reading? Share it

Recommended Readings
JWST spots dust-cloaked 'red supergiant' star just before it went supernova
PositiveScience
Astronomers have made a groundbreaking discovery using the James Webb Space Telescope (JWST), capturing an unprecedented view of a red supergiant star just before it went supernova. This observation is significant as it sheds light on a long-standing mystery regarding the rarity of supernovae from these massive stars. Understanding this phenomenon not only enhances our knowledge of stellar evolution but also provides insights into the life cycles of stars in our universe.
Sneaky asteroid zooms past Antarctica closer than a satellite — and astronomers didn't catch it until hours after
NeutralScience
A small asteroid named 2025 TF recently passed closer to Earth than some satellites, surprising astronomers who only detected it hours later. This event highlights the challenges in monitoring near-Earth objects and emphasizes the importance of improving detection systems to safeguard our planet.
Interstellar comet 3I/ATLAS may come from the mysterious frontier of the early Milky Way, new study hints
PositiveScience
A new study suggests that the interstellar comet 3I/ATLAS originates from a distant part of the Milky Way, potentially acting as a time capsule from the early galaxy. This discovery is significant as it could provide insights into the formation and evolution of our galaxy, helping scientists understand more about the universe's history and the processes that shaped it.
Latest from Science
Australian nanosatellite snaps 1st selfie in space before tracking cosmic gamma-ray bursts (photo)
PositiveScience
Australia's SpIRIT nanosatellite has achieved a remarkable milestone by capturing its first selfie in space, signaling a successful launch and the beginning of its mission to track cosmic gamma-ray bursts. This achievement not only showcases Australia's advancements in space technology but also contributes to our understanding of the universe, making it a significant step for both science and exploration.
Stock up on Sennheiser’s affordable audiophile accessories before Amazon’s Prime Day sale ends
PositiveScience
If you're an audiophile looking for high-quality sound without breaking the bank, now is the perfect time to grab Sennheiser headphones at up to 43% off during Amazon's Prime Day sale. This sale not only makes premium audio more accessible but also highlights Sennheiser's commitment to delivering exceptional sound quality at affordable prices, making it a great opportunity for music lovers.
Toronto’s Subway Deer Enigma Unmasked With DNA Analysis
PositiveScience
In an intriguing turn of events, DNA analysis has revealed the origins of the deer spotted in Toronto's subway system. This discovery not only sheds light on the unusual presence of wildlife in urban areas but also highlights the importance of understanding animal behavior and habitat adaptation. As cities expand, such insights can help in developing strategies for coexistence between humans and wildlife, making this finding significant for urban planning and conservation efforts.
Walmart has the best Sonos soundbar for most people at the best price for everyone
PositiveScience
Walmart is currently offering a fantastic deal on the Sonos Beam Gen. 2 soundbar, which is compact yet delivers impressive spatial audio. This sale is a great opportunity for anyone looking to enhance their home audio experience without breaking the bank. The Sonos Beam Gen. 2 is perfect for most people, making it an ideal choice for those who want quality sound in a small package.
Chinese space station astronauts feast on spicy lamb, mooncakes for mid-autumn festival (video)
PositiveScience
Astronauts aboard the Chinese Tiangong space station celebrated the mid-Autumn festival with a delightful feast of spicy lamb and mooncakes, all while gazing at Earth from above. This event highlights the cultural significance of the festival, even in space, showcasing how astronauts maintain traditions and connect with their heritage, making their mission not just about exploration but also about celebrating human culture.
Bridging the Gap: How AI Can Help—or Hinder—the SDGs
PositiveScience
The article discusses the crucial role of artificial intelligence (AI) in achieving the Sustainable Development Goals (SDGs). It emphasizes that while AI has the potential to reduce costs and improve access to resources, its application must be carefully managed to avoid exacerbating existing inequalities. This conversation is vital as it highlights the need for responsible AI deployment to ensure that technological advancements benefit everyone, particularly marginalized communities.