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The Hubble Space Telescope captures a detailed image of the interstellar comet 3I/ATLAS, showcasing its bright core surrounded by a glowing blue coma against the backdrop of space.

Hubble has captured the interstellar interloper as it races past Earth.

Hubble has captured the interstellar interloper as it races past Earth. Its strange chemical fingerprint—heavy on CO2 and Nickel—hints at an exotic origin. Using the Wide Field Camera 3 (WFC3), Hubble tracked the comet from 286 million km away. The spectral data revealed surprising features.

Dec 15, 20251 min read

Meet Comet 31/Atlas: An interstellar traveler making its third known passage through our solar system. Estimated to be up to 3.5 miles wide, it will approach Earth at 167 million miles on December 15, 2025, before heading past Jupiter in March and making its final departure in the mid-2030s.

A stray comet from another star system is swinging past Earth before racing back into the interstellar void

A stray comet from another star system is swinging past Earth before racing back into the interstellar void, never to return. Measuring a dark object millions of miles away is notoriously difficult. NASA estimates 3I/Atlas is somewhere between 440 meters and 5.6 kilometers wide.

Dec 15, 20251 min read

Despite being the largest globular cluster in the Milky Way with 10 million stars, Omega Centauri's core remains silent and mysterious. Scientists suspect a massive black hole of at least 8,200 solar masses at the center, indicated by stars moving impossibly fast. However, the most sensitive radio scans have revealed nothing, suggesting a "starving" black hole with no nearby fuel to emit emissions.

Evidence suggests an intermediate-mass black hole hides in the Milky Way's largest star cluster

Evidence suggests an intermediate-mass black hole hides in the Milky Way's largest star cluster. But when radio telescopes looked for it, they found only silence. Intermediate-mass black holes are the "missing link" of astronomy. To confirm the one in Omega Centauri, researchers used the Australia Telescope Compact Array to listen for radio waves.

Dec 15, 20251 min read

Illustration explaining the dramatic variability of neutron star NGC 7793 P13, featuring two distinct phases. In the Faint Phase (2021), the star exhibits low X-ray luminosity and slower rotation acceleration. In the Bright Phase (2022-2024), increased X-ray brightness and doubled rotation acceleration are observed, linked to supercritical accretion processes.

New research reveals how this "supercritical" feeding frenzy spins up the star and builds towering columns of X-ray light.

An extraordinary amount of gas is falling onto NGC 7793 P13. New research reveals how this "supercritical" feeding frenzy spins up the star and builds towering columns of X-ray light. Using data from XMM-Newton, Chandra, and NICER, the team tracked P13 from 2011 to 2024. They found a direct link: when the star gets brighter, it spins faster. In 2021, the system went dim (faint phase).

Dec 14, 20251 min read

This infographic explores the role of supernovas in planet creation, from the flawed old model that risked solar system destruction to a new, safer distant supernova approach. It highlights the necessity of elements like Aluminum-26 for building rocky planets, the two-part delivery system involving dust injection and cosmic ray collisions, and the potential commonality of Earth-like worlds formed through such processes.

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

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