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
She Found a Link Between Air Pollution and Infertility
NegativeScience
Harvard researcher Shruthi Mahalingaiah has uncovered concerning links between air pollution and infertility in women, highlighting a critical public health issue. Unfortunately, her important research faced a setback when her grant was canceled, raising questions about the future of studies that could inform policies to protect women's reproductive health. This situation underscores the need for continued funding and support for research that addresses environmental factors affecting fertility.
He Studied How Emissions Are Heating Up U.S. Cities
PositiveScience
Kevin Gurney, an atmospheric scientist, is conducting important research on how emissions are contributing to rising temperatures in U.S. cities. His work aims to understand these systems better to prevent unnecessary heat-related deaths, highlighting the urgent need for climate action and public health measures. This research is crucial as it addresses the intersection of environmental issues and human safety, making it relevant for policymakers and communities alike.
Has Your Scientific Work Been Cut? We Want to Hear.
NegativeScience
The Times is launching a new series to highlight the impact of policy changes by the Trump administration on scientific research. They are seeking stories from scientists whose work has been cut, shedding light on the broader implications for innovation and knowledge in the scientific community. This matters because it underscores the challenges faced by researchers and the potential loss of valuable contributions to society.
She Studied How Foresting Affects Pollinators
NegativeScience
Kim Ballare, a dedicated research ecologist with the U.S. Forest Service, faced a setback when her federal grant was unexpectedly taken away. This situation highlights the challenges researchers often encounter in securing funding, which is crucial for studying important environmental issues like the impact of foresting on pollinators. Without adequate support, vital research may be hindered, affecting our understanding of ecological balance.
King Charles hopes nature film will 'inspire' viewers
PositiveScience
King Charles is set to appear in an Amazon documentary aimed at inspiring viewers to collaborate with nature instead of opposing it. This initiative highlights the importance of environmental stewardship and encourages a harmonious relationship with the natural world, which is crucial in today's climate crisis.
70+ hand-picked October Prime Day deals you should shop right now: Tools, electronics, home goods, and more
PositiveScience
This October, shoppers can take advantage of over 70 carefully selected Prime Day deals on a variety of products, including tools, electronics, and home goods. These deals not only simplify the shopping experience but also provide significant savings, making it an excellent opportunity for consumers to stock up on essentials or treat themselves. With the holiday season approaching, these discounts are particularly timely, ensuring that everyone can find something they need at a great price.