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New research suggests a nearby supernova "cooked" our solar system dry with cosmic rays

We used to think Earth was lucky. New research suggests a nearby supernova "cooked" our solar system dry with cosmic rays—a recipe that might be common across the galaxy. Planets form from "planetesimals"—mountain-sized chunks of rock and ice. In the early solar system, these chunks were wet.

Dec 14, 20251 min read

New findings challenge a 50-year quasar law, revealing that the UV-to-X-ray relationship has evolved over cosmic time. Large-scale X-ray data from eROSITA and XMM-Newton prompt a re-examination of black hole growth and cosmic measurements.

New data suggests that supermassive black holes behaved differently in the early universe

New data suggests that supermassive black holes behaved differently in the early universe, shaking the foundations of how we measure cosmic distance. For 50 years, astronomers believed in a universal rule: Brighter UV = Stronger X-Ray. The ratio was thought to be constant across all of time. The new study from the National Observatory of Athens used the eROSITA telescope to look deeper than ever before. They found that 6.5 billion years ago, this relationship was different.

Dec 14, 20251 min read

Astronomers have directly imaged a record-breaking "Tatooine-like" exoplanet orbiting two suns. Discovered through decade-old data analysis of the Gemini Planet Imager, this young giant planet, six times the size of Jupiter, orbits six times closer to its binary stars than any similar planets. The stars orbit each other every 18 days, while the planet takes 300 years to complete its orbit.

Astronomers have directly imaged a massive planet orbiting two stars

Astronomers have directly imaged a massive planet orbiting two stars. It hugs its suns tighter than any other binary planet found to date.The data sat in archives for years. Taken between 2016 and 2019 by the Gemini Planet Imager (GPI) in Chile, it contained a faint dot that went unnoticed. The "Common Proper Motion" Test: Stars move across the sky. Background stars stay relatively fixed. If a faint dot moves with a star, it's likely a planet bound to it by gravity.

Dec 14, 20251 min read

AI Decodes the Sun's Magnetic Mysteries: The infographic illustrates how the new Haleakalā Disambiguation Decoder uses AI to solve the challenges of mapping the sun’s magnetic fields, offering solutions for accurate 3D modeling and improved space weather forecasts critical for protecting Earth's technology.

Researchers at the University of Hawaiʻi have built an AI that solves a fundamental physics problem

AI Decodes the Sun's Magnetic Mysteries: The infographic illustrates how the new Haleakalā Disambiguation Decoder uses AI to solve the challenges of mapping the sun’s magnetic fields, offering solutions for accurate 3D modeling and improved space weather forecasts critical for protecting Earth's technology.

Dec 14, 20251 min read

The infographic illustrates the "Galactic Divide" in black hole distribution, showing that massive galaxies are more likely to host a supermassive black hole compared to dwarf galaxies. It supports the "Direct Collapse" theory of black hole formation and suggests fewer gravitational waves in the future due to less frequent galaxy mergers.

For years, astronomers assumed almost every galaxy hosted a central supermassive black hole

We thought every galaxy had a monster in its heart. NASA's Chandra Observatory just proved us wrong. For years, astronomers assumed almost every galaxy hosted a central supermassive black hole. But after analyzing 1,600 galaxies over two decades, a team led by the University of Michigan found a startling gap. While nearly all massive galaxies (like our Milky Way) have X-ray bright cores, only about 30% of dwarf galaxies do.

Dec 14, 20251 min read

Scientists have mapped the Alfvén surface, the ‘point of no return’ where solar wind escapes the sun's grasp. Using data from 20 maps, confirmed by NASA's Parker Solar Probe, this dynamic boundary changes with solar activity, enhancing space weather predictions and offering insights into the behavior of other stars.

Astronomers have mapped the "Alfvén surface" where the solar wind escapes the Sun's magnetic grasp

Astronomers have mapped the "Alfvén surface"—the chaotic, shifting boundary where the solar wind escapes the Sun's magnetic grasp. The Alfvén surface is a critical threshold. It separates the Sun's atmosphere from interplanetary space. Below the line: Magnetic waves travel faster than the solar wind. They can zip back down to the sun, keeping the atmosphere connected and "communicating" with the surface.

Dec 14, 20251 min read

JWST's cosmic revelation exposes an 'overmassive' black hole within what seemed to be an ordinary young galaxy, challenging previous theories of synchronized growth by showing how black holes can outpace their host galaxies.

Meet Virgil, the galaxy that is rewriting black hole history

In visible light, it looks like a normal galaxy. In infrared, it reveals a monster. Meet Virgil, the galaxy that is rewriting black hole history. Before JWST, astronomers believed galaxies grew first, nurturing small black holes that grew slowly over time. Virgil breaks this rule. Its black hole is "Overmassive"—far larger than its host galaxy should be able to support. It's like finding a skyscraper engine inside a compact car.

Dec 12, 20251 min read

The fiery illustration of exoplanet TOI-561 b shows a tidally locked world with an intense magma ocean, orbiting its star in under 11 hours. This ancient, iron-poor planet features a volatile-rich atmosphere, resulting in unexpectedly low density and a puzzling temperature disparity observed by Webb.

JWST has found evidence of a thick atmosphere on the ultra-hot Super-Earth TOI-561 b

JWST has found evidence of a thick atmosphere on the ultra-hot Super-Earth TOI-561 b, challenging the idea that such close-in worlds are barren rocks. TOI-561 b is an "Ultra-Short Period" planet, orbiting its star in less than 11 hours. It is tidally locked, meaning one side faces the star forever.

Dec 11, 20251 min read

Illustration depicting the discovery of a cosmic particle outflow from Westerlund 1, featuring a TeV ring detected by the H.E.S.S. telescope and a GeV gamma-ray signal located by the Fermi telescope. An unexplained "tail" connects these phenomena, illustrating high-energy electrons creating a nascent outflow.

Westerlund 1 is the biggest star cluster in our galaxy.

Westerlund 1 is the biggest star cluster in our galaxy. New data reveals it acts as a colossal particle accelerator, blasting a hole through the Milky Way's disk.

Dec 11, 20251 min read

Discovering the ancient supernova SN 2025wny, 10 billion light-years away, sheds light on dark energy. This cosmic explosion is exceptionally bright, with gravitational lensing by an intervening galaxy bending its light and creating multiple images. The varied light paths reveal crucial data, helping solve the Hubble tension by recalculating the universe's expansion rate.

A supernova from 10 billion years ago solved the mystery of the universe's expansion rate

A rare, magnified supernova from 10 billion years ago might finally solve the mystery of the universe's expansion rate. We know the universe is expanding, but we don't agree on how fast. This disagreement is called the Hubble Tension. Early Universe (CMB): Says ~67 km/s/Mpc. Late Universe (Supernovae): Says ~73 km/s/Mpc. SN 2025wny is a "Goldilocks" object. It's an independent test. By measuring the time delay between its lensed images, we can calculate the expansion rate d

Dec 11, 20251 min read

Recent studies highlight how interactions with cosmic environments cause galaxies to exhibit "S" and "U" shaped warps, driven by the clustering and alignment of satellite galaxies with cosmic filaments. This evidence points to cosmic tides as the key force shaping these large-scale structures.

Galaxies aren't always flat disks. Many are warped, bent by invisible forces.

Galaxies aren't always flat disks. Many are warped, bent by invisible forces. New research links these shapes to the satellite galaxies that surround them. Using data from the Sloan Digital Sky Survey, researchers led by Prof. Woong-bae Zee examined hundreds of warped galaxies. They compared them to a "control group" of flat galaxies. The goal: To see if the neighbors (satellite galaxies) had anything to do with the warping.

Dec 10, 20251 min read

Illustration depicting the confirmation of Einstein's century-old theory of frame-dragging, where a rapidly rotating black hole twists spacetime. The recent observation, AT2020afhd, involved a star being shredded in a tidal disruption event, displaying a consistent wobble every 20 days. Evidence was captured through X-ray and radio signals by Swift and the Very Large Array.

Scientists have watched a black hole drag the very fabric of spacetime around with it

For the first time, scientists have watched a black hole drag the very fabric of spacetime around with it, creating a "wobbling" vortex visible from Earth. The event AT2020afhd was a Tidal Disruption Event (TDE)—a star ripped apart by a black hole. But unlike normal TDEs, the X-ray and radio signals weren't steady. They rhythmically brightened and dimmed every 20 days.

Dec 10, 20251 min read

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