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🟣 Chandra tracks M87’s evolving black hole jet in record-breaking X-ray detail
🔗 https://skycr.org/2026/06/16/chandra-m87-black-hole-jet-x-ray/

A 13-year Chandra X-ray study reveals the most detailed view yet of M87's black hole jet, with knots fading and racing at nearly five times the speed of light.
The post Chandra tracks M87’s evolving black hole jet in record-breaking X-ray detail appeared first on SKYCR.ORG.

Chandra tracks M87's evolving black hole jet in record-breaking X-ray detail - SKYCR.ORG

A 13-year Chandra X-ray Observatory study has produced the most detailed X-ray view ever taken of the relativistic jet from M87's supermassive black hole, revealing new structures, fading synchrotron knots and apparent motion reaching nearly five times the speed of light.

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🟣 Qué ver en el cielo del 15 al 21 de junio de 2026: Mercurio, Venus, Júpiter y el solsticio de verano
🔗 https://skycr.org/2026/06/15/que-ver-en-el-cielo-15-al-21-de-junio-2026/

Una guía noche por noche de lo más destacado del cielo entre el 15 y el 21 de junio: la máxima elongación de Mercurio, Venus y Júpiter al atardecer, los encuentros de la Luna con los planetas y Régulo, Saturno antes del amanecer y el solsticio de verano que cierra

Qué ver en el cielo del 15 al 21 de junio de 2026: Mercurio, Venus, Júpiter y el solsticio de verano - SKYCR.ORG

Descubra qué ver en el cielo entre el 15 y el 21 de junio de 2026, desde Costa Rica: la mejor noche del mes para Mercurio, el dúo Venus-Júpiter al atardecer, los encuentros de la Luna creciente con los planetas y con Régulo, Saturno antes del amanecer y la llegada del solsticio de verano. Una guía práctica para salir a observar cada noche.

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🟣 Un destello de rayos X en NGC 6099 revela un agujero negro de masa intermedia devorando una estrella
🔗 https://skycr.org/2026/06/13/destello-rayos-x-ngc-6099-agujero-negro-masa-intermedia/

Ampliación de la imagen tricolor de Chandra de la región asociada con J1806. Los círculos, con radio de 1'', indican las posiciones de tres fuentes dentro o cerca de la región de error de J1806. Crédito: arXiv (2026). DOI: 10.48550/arxiv.2606.01792
The

Un destello de rayos X en NGC 6099 revela un agujero negro de masa intermedia devorando una estrella - SKYCR.ORG

Chandra y Hubble detectan un agujero negro de masa intermedia (IMBH) devorando una estrella en la galaxia NGC 6099, a 450 millones de años luz.

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🟣 Webb finds the strongest evidence yet for ‘black hole stars’ in the early universe
🔗 https://skycr.org/2026/06/11/webb-black-hole-stars-evidence-little-red-dots-2026/

Webb's deepest spectrum of a little red dot — amplified by gravitational lensing to the equivalent of 80 hours of telescope time — reveals over 40 independent spectral lines all converging on the black hole star scenario: a rapidly accreting supermassive black hole buried

Webb finds the strongest evidence yet for 'black hole stars' in the early universe - SKYCR.ORG

A team led by Vasily Kokorev at the University of Texas at Austin obtained the deepest spectrum of a little red dot ever recorded, using Webb and gravitational lensing to achieve 80 effective hours of exposure. Over 40 spectral lines — an iron forest, electron scattering signatures, helium fluorescence, and oxygen ratios — all converge on the BH* scenario: a rapidly accreting supermassive black hole enveloped in a dense hot gas cocoon. Published June 10, 2026, in The Astrophysical Journal (DOI: 10.3847/1538-4357/ae4ed7).

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🟣 Hallan en Fornax dos posibles galaxias casi sin materia oscura
🔗 https://skycr.org/2026/06/09/hallan-en-fornax-dos-posibles-galaxias-casi-sin-materia-oscura/

Astrónomos han identificado en el cúmulo de Fornax dos galaxias ultradifusas que podrían contener muy poca o ninguna materia oscura. Los objetos, llamados FCC 224 y FCC 240, muestran masas dinámicas muy bajas y cúmulos globulares inusualmente brillantes. Su hallazgo recuerda a las

Hallan en Fornax dos posibles galaxias casi sin materia oscura - SKYCR.ORG

Astrónomos hallan en el cúmulo de Fornax dos posibles galaxias ultradifusas casi sin materia oscura, similares a NGC 1052-DF2 y DF4.

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🟣 TOI-1883 b: the puffiest known super-Neptune orbiting an M dwarf, 383 light-years away
🔗 https://skycr.org/2026/06/12/toi-1883-b-super-neptune-m-dwarf/

Astronomers using the Subaru Telescope have measured the mass and density of TOI-1883 b, a super-Neptune 383 light-years away orbiting an M dwarf every 4.5 days. With a mean density of just 0.4 g/cm³, it is the puffiest super-Neptune ever found around this type of star — and a prime

TOI-1883 b: the puffiest known super-Neptune orbiting an M dwarf, 383 light-years away - SKYCR.ORG

A new Subaru Telescope study confirms TOI-1883 b as the puffiest super-Neptune orbiting an M-dwarf star, with a density of just 0.4 g/cm³ and a mass of ~13.7 Earth masses. Located 383 light-years away in the Neptune desert ridge, the planet is now a priority target for JWST atmospheric characterisation.

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Pesquisadores detectaram campos magnéticos em exoplanetas quentes, revelando novas informações sobre suas atmosferas. O estudo, publicado na revista Nature Astronomy, analisa a dinâmica atmosférica de sete gigantes gasosos com dados de telescópios avançados.

🔗 https://omniletters.com/campos-magneticos-exoplanetas-quentes/

#exoplanetas #astronomia #ciencias #campo #magnetico

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🟣 Astronomers find two galaxies that appear to contain almost no dark matter
🔗 https://skycr.org/2026/06/09/dark-matter-deficient-twins-fornax-cluster/

Astronomers have identified FCC 224 and FCC 240 as a possible new pair of dark matter-deficient galaxies in the Fornax Cluster — challenging standard cosmological models and expanding the rare class of objects first seen in the NGC 1052 group.
The post Astronomers find two galaxies that

Astronomers find two galaxies that appear to contain almost no dark matter - SKYCR.ORG

A new study identifies FCC 224 and FCC 240 as a possible dark matter-deficient galaxy pair in the Fornax Cluster, echoing the controversial NGC 1052-DF2 and DF4 system.

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🟣 A ghost in the data: the X-ray object that could crack the mystery of JWST’s little red dots
🔗 https://skycr.org/2026/06/08/a-ghost-in-the-data-the-x-ray-object-that-could-crack-the-mystery-of-jwsts-little-red-dots/

A decade-old X-ray detection hidden in archival Chandra data may finally explain why JWST's mysterious "little red dots" defy conventional astrophysical models — and what they reveal about the violent birth of the universe's

A ghost in the data: the X-ray object that could crack the mystery of JWST's little red dots - SKYCR.ORG

Scientists have identified a peculiar X-ray-emitting object, nicknamed the X-ray dot, that closely matches the profile of JWST's mysterious "little red dots." The discovery, published in The Astrophysical Journal Letters, suggests LRDs are young supermassive black holes hidden inside dense gas cocoons — and that their rare X-ray emission occurs when those cocoons begin to break apart.

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🟣 JWST weighs a dormant black hole from the dawn of the universe — a first in astrophysics
🔗 https://skycr.org/2026/06/04/jwst-dormant-black-hole-early-universe-mass-measurement/

For the first time in history, astronomers have directly measured the mass of a dormant supermassive black hole in the early universe — an invisible giant weighing 6 billion suns, hiding in a galaxy more than 10 billion light-years away. JWST and gravitational

JWST weighs a dormant black hole from the dawn of the universe — a first in astrophysics - SKYCR.ORG

An international team led by Carnegie Science has used JWST and gravitational lensing to make the first direct mass measurement of a dormant supermassive black hole in the early universe. Located in galaxy MRG-M0138 at a redshift of z~2, the black hole weighs 6 billion solar masses and was detected when the universe was only 3 billion years old. The study, published in Science, redefines the boundaries of black hole astrophysics and deepens our understanding of how galaxies and black holes co-evolved in the cosmos's first few billion years.

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