Tag Archive for 'ESA' | Sci.News

$This image shows WR 124, a star located approximately 15,000 light-years away in the constellation of Sagitta. The star displays the characteristic diffraction spikes of Webb’s Near-infrared Camera (NIRCam), caused by the physical structure of the telescope itself. NIRCam effectively balances the brightness of the star with the fainter gas and dust surrounding it, while Webb’s Mid-Infrared Instrument (MIRI) reveals the nebula’s structure. Image credit: NASA / ESA / CSA / STScI / Webb ERO Production Team.$

Webb Captures Extremely Luminous and Hot Wolf-Rayet Star

Mar 15, 2023 by News Staff

Wolf-Rayet stars are in the process of casting off their outer layers, resulting in their characteristic halos of gas and dust. The new Webb images of...

The first epoch of COSMOS-Web NIRCam observations obtained on January 5 and 6, 2023, including the F115W, F150W, F277W, and F444W filters as a color composite. Image credit: COSMOS-Web / Casey et al. / RIT / UT Austin / IAP / CANDIDE.

New Webb Images Offer Treasure Trove of Early Galaxies

Mar 13, 2023 by News Staff

Astronomers from the COSMOS-Web program released mosaic images taken in early January 2023 by the Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument...

This Hubble image shows UGCA 307, a dwarf galaxy some 26 million light-years away in the constellation of Corvus. Image credit: NASA / ESA / Hubble / R. Tully.

Hubble Spots Diminutive Dwarf Galaxy

Mar 13, 2023 by Enrico de Lazaro

NASA has released a stunning photo taken by the NASA/ESA Hubble Space Telescope of the dwarf galaxy UGCA 307. This Hubble image shows UGCA 307, a dwarf...

This Webb image shows the massive galaxy cluster RX J2129.6+0005; due to gravitational lensing, this observation contains three different images of a distant galaxy that hosted the Type Ia supernova event AT 2022riv. Image credit: NASA / ESA / CSA / Webb / P. Kelly.

Webb Sees Three Images of Same Supernova-Hosting Galaxy

Mar 10, 2023 by Enrico de Lazaro

Light from the distant supernova-hosting galaxy was gravitationally lensed by the foreground galaxy cluster RX J2129.6+0005 (RX J2129 for short). This...

This Hubble image shows NGC 5486, an irregular spiral galaxy located 110 million light-years away in the constellation of Ursa Major. Image credit: NASA / ESA / Hubble / C. Kilpatrick.

Hubble Space Telescope Focuses on NGC 5486

Mar 6, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured an amazing photo of the irregular spiral galaxy NGC 5486. This Hubble image shows NGC...

SPT0418-47 is gravitationally lensed by a foreground galaxy, appearing in the sky as a near-perfect ring of light -- a so-called Einstein ring. Image credit: ALMA / ESO / NAOJ / NRAO / Rizzo et al.

Dusty, Chemically Mature Galaxy Spotted in Early Universe

Feb 28, 2023 by News Staff

The newly-discovered galaxy, SPT0418-SE, and its much larger companion, SPT0418-47, reside in a massive dark-matter halo with yet-to-be-discovered neighbors,...

This Hubble image shows JO201 (also known as Ka 364, LEDA 2456 and LEDA 93189), a jellyfish galaxy located in the constellation of Cetus. Image credit: NASA / ESA / Hubble / M. Gullieuszik.

Hubble Finds Star-Forming Clumps in Six Jellyfish Galaxies

Feb 27, 2023 by Natali Anderson

Astronomers using the NASA/ESA Hubble Space Telescope have observed clumps of star formation in the tails and disks of six ram-pressure stripped (jellyfish)...

This candidate massive galaxy could contain as many stars as our present-day Milky Way. Image credit: NASA / ESA / CSA / I. Labbe, Swinburne University of Technology / G. Brammer, Niels Bohr Institute’s Cosmic Dawn Center, University of Copenhagen.

Webb Discovers Impossibly Massive Galaxies in Early Universe

Feb 22, 2023 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have observed six candidate galaxies with stellar masses as high as 1011 solar masses about...

This Hubble image shows a large cluster of galaxies, SPT-CL J0019-2026, surrounded by various stars and smaller galaxies on a dark background. The color image was made from separate exposures taken in the visible and near-infrared regions of the spectrum with Hubble’s Advanced Camera for Surveys (ACS). It is based on data obtained through two filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / H. Ebeling.

Hubble Spots Gravitationally-Lensing Galaxy Cluster

Feb 20, 2023 by Enrico de Lazaro

SPT-CL J0019-2026, a huge cluster of galaxies located 4.6 billion light-years away in the constellation of Cetus, has so much mass that it acts as a gravitational...

This Webb image shows NGC 7496, a barred spiral galaxy some 24 million light-years away in the constellation of Grus. Image credit: NASA / ESA / CSA / Webb / Judy Schmidt.

Webb Focuses on Polycyclic Aromatic Hydrocarbons in Nearby Galaxies

Feb 16, 2023 by News Staff

Webb observations of polycyclic aromatic hydrocarbon emission provide some of the deepest and highest resolution views of the cold interstellar medium...

This Webb image shows Abell 2744, a huge galaxy cluster some 4 billion light-years away in the constellation of Sculptor. Image credit: NASA / ESA / CSA / I. Labbe, Swinburne University of Technology / R. Bezanson, University of Pittsburgh / A. Pagan, STScI.

Webb Reveals Never-Before-Seen Details of Abell 2744

Feb 16, 2023 by News Staff

Webb astronomers estimate 50,000 near-infrared sources are represented in the new image of the huge galaxy megacluster Abell 2744. This Webb image shows...

This Hubble image shows SDSSCGB 10189, a trio of merging galaxies located in the constellation of Boötes. Further to the left is an unconnected, dimmer spiral galaxy. Image credit: NASA / ESA / Hubble / M. Sun.

Hubble Spots Trio of Colliding Star-Forming Galaxies

Feb 13, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have produced an outstanding image of a trio of merging galaxies called SDSSCGB 10189. This Hubble...

This Hubble image heralds the start of Saturn’s ‘spoke season’ with the appearance of two smudgy spokes in the B ring, on the left in the image. Image credit: NASA / ESA / Amy Simon, NASA’s Goddard Space Flight Center / Alyssa Pagan, STScI.

Hubble Detects Start of New Saturn Ring Spoke Season

Feb 9, 2023 by News Staff

Saturn is known for its iconic, pristine rings. However, the main B ring can have splotches and streaks of darker or lighter material, known as spokes,...

An artist’s impression of the dwarf planet Quaoar and its ring. Quaoar’s moon Weywot is shown on the left. Image credit: ESA / CC BY-SA 3.0 IGO.

Astronomers Discover Ring around Trans-Neptunian Object Quaoar

Feb 9, 2023 by Natali Anderson

The newly-detected ring orbits at 7.4 radii from Quaoar — much further away from the object than the rings around Saturn. An artist’s impression...

An artist’s impression of an irregularly-shaped asteroid. Image credit: N. Bartmann, ESA & Webb / ESO / M. Kornmesser / S. Brunier / N. Risinger, skysurvey.org.

Webb Discovers New Asteroid in Solar System’s Main Belt

Feb 7, 2023 by News Staff

The newly-discovered asteroid is less than 230 m (755 feet) across, and orbits within the main asteroid belt, which is located between Mars and Jupiter. An...

An artist’s impression of our Milky Way Galaxy in its youth. The Sparkler galaxy provides a snap-shot of an infant Milky Way as it accretes mass over cosmic time. Image credit: James Josephides, Swinburne University.

Astornomers Spot Progenitor of Milky Way-Like Galaxy in Early Universe

Feb 6, 2023 by News Staff

We are seeing the ‘Sparkler’ galaxy from 9.1 billion years ago, some 4 billion years after the Big Bang. An artist’s impression of our Milky Way...

This Hubble image shows Donatiello II (center), an ultra-faint dwarf galaxy some 11.4 million light-years away in the constellation of Sculptor. Image credit: NASA / ESA / Hubble / B. Mutlu-Pakdil / G. Donatiello.

Hubble Observes Ultra-Faint Dwarf Galaxy Donatiello II

Feb 6, 2023 by Enrico de Lazaro

A new image taken with NASA/ESA Hubble Space Telescope shows Donatiello II, a recently-discovered dwarf galaxy associated with the nearby spiral galaxy...

This image shows how microlensing was used to measure the mass of the white dwarf LAWD 37. The inset box plots how the dwarf passed in front of a background star in 2019. The wavy blue line traces the dwarf’s apparent motion across the sky as seen from Earth. Image credit: NASA / ESA / Peter McGill, UC Santa Cruz, IoA / Kailash Sahu, STScI / Joseph DePasquale, STScI.

Astronomers Directly Measure Mass of Isolated White Dwarf

Feb 2, 2023 by News Staff

In November 2019, the nearby single, isolated white dwarf LAWD 37 aligned closely with a distant background source and caused a so-called microlensing...

This composite image shows at least three galaxy clusters colliding in a jumbled scene. The resulting giant galaxy cluster, known as Abell 2256, resembles a grainy, pixilated, sky blue cloud topped with licks of flaming red hair. The cloud is adorned with red shapes and streaks, and set against a black background heavily dotted with colorful specks. The image combines X-ray, radio, optical, and infrared data. Image credit: NASA / CXC / University of Bolonga / Rajpurohit et al. / ESA / XMM-Newton / LOFAR / ASTRON / NCRA / TIFR / GMRT / NSF / NRAO / VLA / Pan-STARRS.

Astronomers Capture Ongoing Collision of Three Galaxy Clusters

Feb 1, 2023 by News Staff

Using NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and three radio telescopes (the Giant Metrewave Radio Telescope, the Low Frequency Array,...

This Webb image shows LEDA 2046648, a spiral galaxy one billion light-years away in the constellation of Hercules. Image credit: NASA / ESA / CSA / Webb / A. Martel.

Webb Spots Large Spiral Galaxy in Hercules

Jan 31, 2023 by Enrico de Lazaro

LEDA 2046648 is accompanied by a profusion of smaller, more distant galaxies which range from fully-fledged spirals to mere bright smudges. This Webb image...

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