Astronomers working with NASA's JWST have uncovered a new way for a planet to meet its end: plunging itself into its host star 🌌✨

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✨ Scientists have created the most detailed, high-resolution map of dark matter using data from NASA's James Webb Space Telescope. This map reveals how invisible dark matter intertwines with visible matter, confirming its role in shaping large-scale cosmic structures like galaxy clusters.

🌌 Published on Monday, Jan. 26, in Nature Astronomy, the map is twice as sharp as previous dark matter maps from other observatories, offering unprecedented clarity on the universe's "invisible scaffolding" and its gravitational influence on regular matter throughout cosmic history.

🔭 The new map, focusing on an area in the constellation Sextans, identifies nearly 800,000 galaxies and shows dark matter in greater detail than previous maps from Hubble and ground-based telescopes.

#JWST #DarkMatter #Astronomy

NASA reveals new details about dark matter influence on universe: « Scientists using data from NASA’s James Webb Space Telescope have made one of the most detailed, high-resolution maps of dark matter ever produced. »

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JWST Confirmation of a Runaway Supermassive Black Hole via Its Supersonic Bow Shock. A ‘runaway’ black hole ejected from its host galaxy is barrelling across space — and leaving behind a wake of newborn stars.

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* 🌠 JWST/NIRSpec observations reveal a sharp kinematic discontinuity in a candidate runaway supermassive black hole (SMBH) at z = 0.96, with a radial velocity change of ~600 km s⁻¹ across 1 kpc.

* 💨 This velocity gradient and projected postshock flow velocity of ~300 km s⁻¹ are consistent with a supersonic object moving at ~1000 km s⁻¹ with an inclination of ~30° out of the plane of the sky.

* 🌌 The findings confirm the object is a supersonic runaway SMBH, a predicted consequence of gravitational-wave recoil or multi-body ejection from galactic nuclei, with an estimated SMBH mass of M• ≳ 10⁷ M⊙.

#RunawaySMBH #JWST #Astrophysics

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🔭 Astronomers using the James Webb Space Telescope have detected water-ice clouds on Epsilon Indi Ab, a Jupiter-like exoplanet with 7.6 times Jupiter's mass.

🔬 These observations are a crucial step in understanding exoplanet atmospheres, particularly for the ongoing search for Earth-like planets, though more advanced telescopes will be needed for detailed Earth studies.

✨ The discovery highlights the need for more complex atmospheric models that account for clouds, pushing the boundaries of current exoplanet research.

#Exoplanets #JWST #Astronomy

⭐ A Saturn-sized exoplanet, TOI-199b, has been found to have an atmosphere rich in methane by NASA's James Webb Space Telescope. This planet has Earth-like temperatures, about 175°F.

⭐ This is the first detailed atmospheric analysis of a temperate, giant exoplanet, offering insights into planetary formation and evolution, and potentially Earth's atmosphere.

⭐ The study, published May 20 in The Astronomical Journal, used transmission spectroscopy to analyze starlight passing through TOI-199b's atmosphere. Methane was detected, confirming previous models. Ammonia and carbon dioxide were also hinted at.

#Exoplanet #JWST #SpaceScience

JWST measures mass of a dormant black hole from the early universe, 6 billion times the mass of our Sun, 10 billion light-years away

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🌌 Astronomers have identified a "galaxy-killing wind" in the early universe, potentially explaining the abundance of massive, "dead" galaxies. This wind, fueled by galaxy collisions and intense star formation, blasts away gas needed for new stars.

💥 Using JWST and ALMA, researchers studied CRISTAL-02, a galaxy one billion years after the Big Bang forming stars twice as fast as peers. They observed a massive cold gas plume ejected from the galaxy, indicating a powerful outflow.

⏳ This rapid gas expulsion suggests CRISTAL-02 could become a dead galaxy in less than 50 million years, offering a solution to the mystery of "live fast, die young" massive galaxies in the early universe. Nearly half of early massive galaxies interact with neighbors, pointing to this as a widespread phenomenon.

#Astrophysics #JWST #Galaxies

🔭 Northwestern University-led astronomers have discovered salty clouds in the atmosphere of GJ504b, the universe's "Pink Planet."

✨ Using the James Webb Space Telescope (JWST), researchers obtained the first direct evidence of salt clouds in a cold planetary-mass companion's atmosphere, a phenomenon theorized over 15 years ago.

🌍 GJ504b, located 57 light-years from Earth and estimated to be between 2.5 and 4 billion years old, is too faint for ground-based telescopes but was successfully observed by JWST in about two hours.

#Space #Astronomy #JWST

🔴 Astronomers using NASA's James Webb Space Telescope have discovered a unique object in the early universe, just hundreds of millions of years after the Big Bang, which they've dubbed a "black hole star."

🔴 This "black hole star," named MoM-BH*-1, is the size of our solar system and emits 100 billion times more energy than any known star, suggesting a central black hole 100,000 times the mass of the sun powering a dense hydrogen gas envelope.

🔴 The discovery, published today in Nature, could explain other mysterious "little red dots" observed by JWST in the early universe, which have puzzled scientists for a while.

#Astronomy #JWST #BlackHole

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🔭 Massive Black Holes Spotted in Early Universe: JWST data revealed multiple massive black holes actively growing and merging about 12.5 to 12.8 billion years ago.

🔬 New Detection Method: Researchers from Kavli IPMU developed a pixel-by-pixel color analysis technique to identify merging black holes that were previously mistaken as single objects.

✨ "Little Red Dots" Identified: These objects, termed "Little Red Dots" (LRDs), are believed to be black holes rapidly consuming surrounding matter, with the study identifying four pairs of LRDs.

🌌 Early Galaxy Growth Clues: The findings suggest a link between galaxy mergers and the rapid growth of black holes in the early universe, potentially impacting their eventual mergers.

#JWST #BlackHoles #Astronomy