Astronomy News

Close Passage of Sun-Like Star Shaped Outer Solar System Billions of Years Ago, Research Suggests

Snapshot of the ancient stellar flyby. The turquoise particles indicate the TNOs injected into the planet region by the flyby. The perturber star passed through the disk at a perihelion distance of 110 AU on the right-hand side of the picture. Image credit: Pfalzner et al., doi: 10.1038/s41550-024-02349-x.
Sep 10, 2024 by Natali Anderson

At least 140 million Sun-like stars in our Milky Way Galaxy are likely to have experienced a similar stellar flyby, according to new research by a team of astrophysicists from the Forschungszentrum Jülich and Leiden University. Snapshot of the ancient stellar flyby. The turquoise particles indicate the TNOs injected into the planet region by the flyby. The perturber star passed through the disk at a perihelion distance of 110 AU on the right-hand...

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This VST image shows the spiral galaxy NGC 3312. Image credit: ESO / INAF / M. Spavone / E. Iodice.

VST Sees Jellyfish Galaxy in Hydra Cluster

Sep 10, 2024 by Enrico de Lazaro

Astronomers using ESO’s VLT Survey Telescope (VST) in Chile have captured a stunning image of the distorted spiral galaxy NGC 3312. This VST image shows...

In this image of the barred spiral galaxy NGC 5668, Hubble was used to examine the surroundings of the Type II supernova event labeled SN 2004G, seeking to study the kinds of stars that end their lives as this kind of supernova. The color image is composed of near-infrared and optical observations from Hubble’s Advanced Camera for Surveys (ACS). Two filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / C. Kilpatrick.

Hubble Focuses on Star-Forming Spiral Galaxy

Sep 9, 2024 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has provided astronomers a detailed new image of the barred spiral galaxy NGC 5668. In this image of the barred spiral...

The galaxy cluster MACS-J0417.5-1154 is so massive it is warping the fabric of space-time and distorting the appearance of galaxies behind it, an effect known as gravitational lensing. This natural phenomenon magnifies distant galaxies and can also make them appear in an image multiple times, as Webb saw here. Two distant, interacting galaxies -- a face-on spiral and a dusty red galaxy seen from the side -- appear multiple times, tracing a familiar shape across the sky. Active star formation, and the face-on galaxy’s remarkably intact spiral shape, indicate that these galaxies’ interaction is just beginning. Image credit: NASA / ESA / CSA / STScI / V. Estrada-Carpenter, Saint Mary’s University.

Webb Spots Distorted Galaxy Forming Cosmic Question Mark

Sep 5, 2024 by News Staff

It’s 7 billion years ago, and the Universe’s heyday of star formation is beginning to slow. What might our Milky Way Galaxy have looked like at that...

This Hubble image shows NGC 346, an open star cluster some 210,000 light-years in the constellation of Tucana. Image credit: NASA / ESA / C. Murray, Space Telescope Science Institute / Gladys Kober, NASA & Catholic University of America.

Hubble Space Telescope Captures Ultraviolet Image of NGC 346

Sep 3, 2024 by Enrico de Lazaro

The Hubble team has released a striking new photo taken by the NASA/ESA Hubble Space Telescope of the open cluster NGC 346, which resides in one of our...

An artist’s impression of HSC J121503.42-014858.7 and HSC J121503.55-014859.3 quasars. Image credit: Izumi et al., doi: 10.3847/1538-4357/ad57c6.

Astronomers Discover Spectacular Galactic Merger in Early Universe

Sep 2, 2024 by News Staff

Using the Atacama Large Millimeter/submillimeter Array (ALMA) and the Subaru Telescope, astronomers have discovered a pair of merging gas-rich galaxies...

IC 4709’s swirling disk filled with stars and dust bands is beautifully captured by Hubble, as is the faint halo surrounding it. The color image is made up of observations from Hubble’s Advanced Camera for Surveys (ACS) in the near-infrared and optical parts of the spectrum. 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 / M. Koss / A. Barth.

Hubble Spots Active Spiral Galaxy in Telescopium

Sep 2, 2024 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured an amazing photo of the lens-shaped spiral galaxy IC 4709. IC 4709’s swirling disk...

This Hubble image shows NGC 261, an emission nebula some 200,000 light-years away from Earth in the constellation of Tucana. Image credit: NASA / ESA / L.C. Johnson, Northwestern University / Gladys Kober, NASA & Catholic University of America.

Hubble Observes Emission Nebula in Small Magellanic Cloud: NGC 261

Aug 30, 2024 by Enrico de Lazaro

NGC 261 resides within the Small Magellanic Cloud, one of our Milky Way Galaxy’s closest neighbors. This Hubble image shows NGC 261, an emission nebula...

The Triangulum Galaxy is the third largest galaxy in our Local Group of galaxies. Image credit: NASA / ESA / M. Boyer, STScI / J. Dalcanton, University of Washington / Gladys Kober, NASA & Catholic University of America.

Hubble Sees Central Region of Triangulum Galaxy

Aug 28, 2024 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have taken a detailed image of a spectacular central part of the Triangulum Galaxy. The Triangulum...

The Pegasus dwarf spheroidal galaxy resides around 959,000 light-years away from the Andromeda Galaxy. Image credit: NASA / ESA / D. Weisz, University of California – Berkeley / Gladys Kober, NASA & Catholic University of America.

Hubble Zooms In On Pegasus Dwarf Spheroidal Galaxy

Aug 27, 2024 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured this spectacular image of the Pegasus dwarf spheroidal galaxy, a satellite of the Andromeda galaxy. The...

This artist’s impression shows the locations of multiple radio observatories across the planet, which participated in a pilot experiment conducted by the EHT Collaboration that obtained the highest-resolution observations from the ground. Image credit: ESO / M. Kornmesser.

EHT Makes Highest-Resolution Black Hole Detections Yet from Earth

Aug 27, 2024 by News Staff

Astrophysicists with the Event Horizon Telescope (EHT) Collaboration have conducted test observations achieving the highest resolution ever obtained from...

At an estimated mass of 5 Jupiter masses, NIRISS-NGC1333-5 (also known as NN5) is a good candidate to be the lowest-mass object found in NGC 1333 thus far and the lowest-mass object with a disk in any region identified to date. Image credit: Langeveld et al., doi: 10.3847/1538-3881/ad6f0c.

Webb Discovers Six Free-Floating Exoplanets in NGC 1333

Aug 27, 2024 by News Staff

Using the Near-Infrared Imager and Slitless Spectrograph (NIRISS) instrument on the NASA/ESA/CSA James Webb Space Telescope, astronomers have discovered...

This illustration shows what the activities of a Kardashev Type III civilisation might look like - encapsulating the energy of stars by so-called Dyson spheres is one way to harness enormous energies on galactic scales; the resulting waste heat products should be detectable by telescopes. Image credit: Danielle Futselaar / ASTRON.

Murchison Widefield Array Searches for Extragalactic Alien Technosignatures

Aug 26, 2024 by Natali Anderson

Astronomers using the Murchison Widefield Array in Western Australia have searched for alien signals at a 10 kHz spectral resolution originating from a...

Composite-color image of A2744-QSO1. Image credit: Furtak et al., doi: 10.1038/s41586-024-07184-8.

Early Galaxies Were Less Massive than Previously Thought

Aug 26, 2024 by News Staff

In a paper published today in the Astronomical Journal, astronomers analyzed the evolution of massive galaxies at redshifts of 4-8 selected from the JWST...

This Hubble image shows UGC 3478, a spiral galaxy located 128 million light-years away in the constellation of Camelopardalis. Image credit: NASA / ESA / Hubble / M. Koss / A. Barth.

Hubble Space Telescope Gazes at UGC 3478

Aug 26, 2024 by Enrico de Lazaro

A stunning new image taken with the NASA/ESA Hubble Space Telescope provides a detailed look at the spiral galaxy UGC 3478. This Hubble image shows UGC...

An artist’s impression of the super-Earth exoplanet HD 164922d. Image credit: Sci-News.com.

Super-Earths and Sub-Neptunes Contain Much More Water than Previously Thought

Aug 23, 2024 by News Staff

Water is an important component of exoplanets, with its distribution, that is, whether at the surface or deep inside, fundamentally influencing the planetary...

This artist’s impression displays TRAPPIST-1 and its planets reflected in a surface. Image credit: NASA / R. Hurt / T. Pyle.

TRAPPIST-1 System Was Formed in Two Steps, Study Suggests

Aug 21, 2024 by News Staff

TRAPPIST-1, an ultracool dwarf star located 38.8 light-years away in the constellation of Aquarius, hosts seven planets. The period ratios of neighboring...

This Hubble image shows UGC 4879, an irregular dwarf galaxy some 3.6 million light-years away in the constellation of Ursa Major. Image credit: NASA / ESA / Hubble / K. Chiboucas, NOIRLab & Gemini North / M. Monelli, Instituto de Astrofisica de Canarias / Gladys Kober, NASA & Catholic University of America.

Hubble Space Telescope Snaps New Image of UGC 4879

Aug 21, 2024 by Enrico de Lazaro

The Hubble astronomers have released a stunning new image snapped by the NASA/ESA Hubble Space Telescope of the dwarf irregular galaxy UGC 4879. This Hubble...

This false-color image of Polaris, captured by the CHARA Array in April 2021, reveals large bright and dark spots on the star’s surface. Image credit: Evans et al., doi: 10.3847/1538-4357/ad5e7a.

Astronomers Find Spots on Surface of Polaris

Aug 20, 2024 by News Staff

Astronomers using the Center for High Angular Resolution Astronomy (CHARA) Array have observed Polaris, a member of a triple system and the nearest and...

This composite image shows RCW 106, a star-forming region located in the southern constellation Norma, approximately 12,000 light-years away from Earth. The image imposes a red map of dense gas, imaged with the ArTéMiS camera at APEX, over an optical image taken with ESO’s VLT Survey Telescope. Image credit: ESO / M. Mattern et al.

Denser Molecular Clouds Are Not More Efficient at Forming Stars, Astrophysicists Say

Aug 19, 2024 by Natali Anderson

Despite recent progress, the question of what regulates the star formation efficiency in galaxies remains one of the most debated problems in astrophysics....

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