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Chandra X Ray Observatory

All articles tagged with #chandra x ray observatory

Patriotic cosmos: NASA’s red, white and blue space photos celebrate 250th birthday
space1 month ago

Patriotic cosmos: NASA’s red, white and blue space photos celebrate 250th birthday

NASA’s Chandra X-ray Observatory released a space photo of the week collection to mark the U.S. 250th birthday, blending Chandra X-ray data with images from Hubble and JWST to render four cosmic targets—Cassiopeia A, NGC 3603, NGC 4736 (M94), and ZwCl 0024+1652—in red, white and blue. The set showcases a supernova remnant, a luminous star‑forming nebula, a spiral galaxy with a starburst ring, and a distant galaxy cluster, highlighting the universe’s dramatic environments across thousands to millions of light-years and—including new sonifications—experiencing space through sight and sound.

Milky Way's spiral arms stretch farther into space, new measurements show
science1 month ago

Milky Way's spiral arms stretch farther into space, new measurements show

Astronomers using X-ray data from NASA’s Chandra and ESA’s XMM-Newton measure dust-ring geometry created by distant gamma-ray bursts to map the Milky Way’s outer spiral arms, finding the arm in the far reaches is about 3,500 light-years wide and implying a potential update to the Galaxy’s size and mass; the method offers a geometry-based alternative to rotation-based estimates but relies on rare bright bursts, so more observations are needed.

Patriotic X-ray Portraits: NASA's Space Telescopes Fire Up Four Cosmic Wonders
space1 month ago

Patriotic X-ray Portraits: NASA's Space Telescopes Fire Up Four Cosmic Wonders

NASA’s Chandra X-ray Observatory, teamed with the Hubble and JWST, released four “red, white and blue” space images to celebrate America’s 250th anniversary. The shots showcase the galaxy cluster ZwCl 0024+1652, the spiral galaxy Messier 94, the star-forming region NGC 3603, and the Cassiopeia A supernova remnant, blending X-ray data with optical/IR views and adding sonifications that translate the data into celestial sounds.

Chandra Detects Surviving Stars Fueling X-ray Flares in M83
science2 months ago

Chandra Detects Surviving Stars Fueling X-ray Flares in M83

NASA's Chandra X-ray Observatory studied the star-forming galaxy Messier 83 over 14 years and found that about half of the 22 X-ray sources tied to supernova remnants vary dramatically in brightness, a surprise that points to a population of stellar survivors in high-mass X-ray binaries with compact remnants accreting from their companion stars; alternative explanations include fallback of exploded material. This may be common in star-forming galaxies, with similar variability seen in M51.

Webb’s Red Dots Point to Black Hole Feeding Inside Gas Clouds
space3 months ago

Webb’s Red Dots Point to Black Hole Feeding Inside Gas Clouds

JWST has identified over 300 mysterious red-tinted ‘little red dots’ whose origin remains unknown. A new Chandra X-ray Observatory paper reports that one LRD, 3DHST-AEGIS-12014, emits X-rays, aligning with the idea that some LRDs are a transient phase in which a supermassive black hole accretes material from a surrounding gas cloud; X-rays can escape during this process, making the dot visible. If this is correct, these dots should fade as the cloud is consumed, and continued observations including ongoing support for Chandra will be needed to catch such a transition.

X-ray Dot Could Unmask Webb's Little Red Dots
space3 months ago

X-ray Dot Could Unmask Webb's Little Red Dots

A newly analyzed X-ray source, nicknamed the X-ray dot, observed by Chandra and later in JWST fields, may explain the Webb-detected “little red dots” by showing that these early-universe black holes are enshrouded in dense gas that blocks X-rays; as accretion progresses, gaps in the cocoon can form, allowing X-rays to escape and revealing the black hole’s interior. This supports the idea that little red dots are young supermassive black holes in rapid growth, with future observatories like the Roman Space Telescope expected to help find modern analogues and further illuminate black hole evolution in the early universe.

X-Ray Dot Emerges as Key to Mystery of Ancient Cosmic Red Dots
space3 months ago

X-Ray Dot Emerges as Key to Mystery of Ancient Cosmic Red Dots

NASA’s Chandra X-ray Observatory and the James Webb Space Telescope have identified an X-ray–emitting ‘dot’ among the mysterious little red dots, suggesting these ancient, ultra-massive objects may represent a new, gas-enshrouded phase of supermassive black hole growth—potentially a “black hole star” stage—most of them located about 12 billion light-years away.

Distant X-ray Dot Could Unveil How Early Black Holes Grew
space3 months ago

Distant X-ray Dot Could Unveil How Early Black Holes Grew

Astronomers using Webb and Chandra detected a faint, compact red source about 11.8 billion light-years away (3DHST-AEGIS-12014) that emits X-rays, unlike most little red dots. This could represent a transitional phase where a rapidly growing black hole is still buried in dense gas, helping link the LRD population to conventional active black holes and refining models of black hole formation in the early universe, though alternative explanations exist and further observations are needed.

Young Suns Quiet X-ray Glow Faster, Boosting Planet Habitability
science4 months ago

Young Suns Quiet X-ray Glow Faster, Boosting Planet Habitability

New observations of eight star clusters aged 45–750 million years show Sun-like stars dim their X-ray output far faster than previously thought, likely due to declining magnetic activity. This rapid quieting reduces harmful radiation on surrounding planets, potentially helping develop robust atmospheres and life, with data from Chandra, Gaia, and ROSAT.

Chandra Captures First Astrosphere Around a Sun-like Young Star
science4 months ago

Chandra Captures First Astrosphere Around a Sun-like Young Star

Astronomers using NASA’s Chandra X-ray Observatory have captured the first image of an astrosphere around a Sun-like young star HD 61005 (nicknamed the “Moth”). The extended X-ray emission shows a bubble created by a wind that’s about three times faster and 25 times denser than the young Sun’s, offering insights into how the Sun’s heliosphere may have looked billions of years ago as it moved through the galaxy.

From Frenzy to Freeze: Chandra Maps a 10-Billion-Year Slowdown in Black Hole Growth
science5 months ago

From Frenzy to Freeze: Chandra Maps a 10-Billion-Year Slowdown in Black Hole Growth

NASA’s Chandra X-ray Observatory shows that supermassive black holes grew rapidly in the early universe but have slowed dramatically over more than ten billion years, likely due to dwindling cold gas, fewer galaxy mergers, and feedback processes; the study combines multiple X-ray datasets to provide a comprehensive view of this long-term decline and its implications for how galaxies evolve.

NASA Turns Space Data into Sound: A Sonic Tour of Jupiter and Saturn
space5 months ago

NASA Turns Space Data into Sound: A Sonic Tour of Jupiter and Saturn

NASA’s Chandra X-ray Observatory is converting solar X-ray data into audible soundscapes, letting listeners hear Jupiter’s auroras and Saturn’s rings. By mapping data attributes like brightness, position, and energy to musical qualities such as pitch and volume, scientists create accessible, immersive representations of space that expand how the public experiences planetary data.