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black holes

Artist’s impression of the accretion disc around the massive black hole Ansky and its interaction with a small celestial object

From boring to bursting: a giant black hole awakens

Categories Physics & Mathematics, Space

X-ray data gathered by the Chandra telescope from the center of M31, highlighting the four nuclear sources — S1, SSS, N1, and P2. P2 corresponds to the position of the supermassive black hole at the center of the Andromeda galaxy.

When a Black Hole Winks at You

Categories Physics & Mathematics, Space

Artist’s impression of supermassive black holes (Courtesy of NOIRLab/NSF/AURA/J. daSilva/M. Zamani)

Black Holes: Cosmic Gardeners That Might Actually Nurture Life

Categories Life & Non-humans, Physics & Mathematics, Space

A star and a black hole orbit each other closely: mass from the star is captured by the black hole. As a consequence of this, a pair of jets launch away from the black hole.

Tiny Black Holes Pack a Cosmic Punch: Scientists Spot New Particle Accelerators in Space

Categories Physics & Mathematics, Space

Artist’s impression of the interacting galaxies observed in this research. The gravitational interactions during the merger trigger both starburst and quasar activity.

Galaxy Merger Reveals Birth of Cosmic ‘Monster’ 12.8 Billion Years Ago

Categories Physics & Mathematics, Space

Side-by-side simulated images of M87* show the improvement in clarity and resolution from 230 GHz to 345 GHz. These improvements are allowing scientists to measure the size and shape of black holes more precisely.

Event horizon telescope makes highest-resolution black hole detections from Earth

Categories Physics & Mathematics, Space

This illustration depicts a binary star system consisting of a dense neutron star and a normal Sun-like star (upper left). Using data from the European Space Agency's Gaia mission, astronomers found several systems like this one, in which the two bodies are widely separated. Because the bodies in these systems are far apart, with separations on average 300 times the size of a Sun-like star, the neutron star is dormant—it is not actively stealing mass from its companion and is thus very faint. To find these hidden neutron stars, the scientists used Gaia observations to look for a wobble in the Sun-like stars caused by a tugging action of the orbiting neutron stars. These are the first neutron stars discovered purely due to their gravitational effects.

Sun-like stars found orbiting hidden companions

Categories Space

An artist’s impression showing bi-polar jets of gas originating from a supermassive black hole at the centre of a galaxy.

How the ‘heart and lungs’ of a galaxy extend its life

Categories Space

Here's a clearer version of the image caption: Colored map of the PJ308-21 system showing gas emissions: - Hydrogen: Red and blue - Oxygen: Green The central quasar's light has been masked out. Color variations in the quasar's host galaxy and its companions indicate different gas properties in each region.

Webb Space Telescope captures staggering quasar-galaxy merger in remote universe

Categories Space

A black hole and spiral wind

Cosmic Growth Spurt: Supermassive Black Hole Mimics Star Formation

Categories Physics & Mathematics, Space

A galaxy suddenly became much brighter in late 2019. This reveals a giant black hole at its center that's woken up and started feeding on surrounding gas, making the whole galaxy light up. This is the first time scientists have observed this awakening happen.

Astronomers Witness a Massive Black Hole Awakening in Real-Time for the First Time

Categories Physics & Mathematics, Space

Illustration of pair plasma in a beaker

Pair plasmas found in deep space can now be generated in the lab

Categories Physics & Mathematics, Space

A 3D rendered image of the spiral galaxy NGC 4151, with a bright central region representing the active galactic nucleus. The image zooms in to show a glowing accretion disk surrounding a supermassive black hole, with twin jets of particles emanating from the disk's center. Colorful spectral lines are overlaid on the image, highlighting the iron fingerprints detected by XRISM's Resolve instrument.

XRISM Telescope Reveals Iron Fingerprints in Nearby Galaxy

Categories Space

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