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An artist rendition of comet C/2014 UN271. Image credit: NSF / AUI / NSF / NRAO / M.Weiss.

ALMA Detects Molecular Activity in Largest Known Oort Cloud Comet

Jun 17, 2025 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have observed comet C/2014 UN271 (Bernardinelli-Bernstein) — the largest...

This artist’s conception shows denser regions of the cosmic web in blue and void areas in red. Image crdit: Jack Madden / IllustrisTNG / Ralf Konietzka / Liam Connor, CfA.

Astronomers Measure Distribution of Ordinary Matter across Cosmic Web

Jun 16, 2025 by News Staff

Astronomers have used Fast Radio Bursts (FRBs) to show that more than three-quarters of the Universe’s ordinary matter has been hiding in the thin gas...

Cyanocoronene, composed of seven interconnected benzene rings and a cyano group, was found in the cold, dark molecular cloud TMC-1, a region known for its rich chemistry and as a cradle for new stars. Image credit: NSF / AUI / NSF / NRAO / P.Vosteen.

Cyanocoronene: Astronomers Detect Seven-Ring Polycyclic Aromatic Hydrocarbon in TMC-1

Jun 16, 2025 by News Staff

Polycyclic aromatic hydrocarbons (PAHs) are expected to be the most abundant class of organic molecules in space, yet their their lifecycle in the interstellar...

This Hubble image shows NGC 4449, a dwarf galaxy some 12.5 million light-years away in the constellation of Canes Venatici. Image credit: NASA / ESA / Hubble / E. Sabbi / D. Calzetti / A. Aloisi.

Hubble Space Telescope Captures New Image of NGC 4449

Jun 16, 2025 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have produced an outstanding new image of the dwarf starburst galaxy NGC 4449. This Hubble image...

ANITA was placed in Antarctica because there is little chance of interference from other signals; to capture the emission signals, the balloon-borne radio detector is sent to fly over stretches of ice, capturing what are called ice showers. Image credit: Stephanie Wissel / Penn State.

Two Anomalous Radio Signals Detected Coming from Antarctic Ice

Jun 13, 2025 by News Staff

The unusual radio pulses were detected by the Antarctic Impulsive Transient Antenna (ANITA) experiment, a range of instruments flown on NASA balloons high...

Photograph of the bottom half of the Sun, with a highlighted square region around the Sun’s south pole. Taken in ultraviolet light, the image shows the hot gas in the Sun’s outer atmosphere, the corona, glowing yellow as it extends outwards in threads and loops from the Sun. Image credit: ESA / NASA / Solar Orbiter / EUI Team / D. Berghmans, ROB.

Solar Orbiter Images Sun’s Poles

Jun 12, 2025 by News Staff

Any image we have ever seen of the Sun was taken from around the Sun’s equator. This is because Earth, the other planets, and all other operational spacecraft...

An artist’s rendition of the YSES-1 system consisting of the Sun-like star in the center, YSES-1b and its dusty circumplanetary disk (right), and YSES-1c with silicate clouds in its atmosphere (left). Image credit: Ellis Bogat.

Webb Observes Two Young Exoplanets in YSES-1 System

Jun 11, 2025 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected silicate clouds in the atmosphere of the exoplanet YSES-1c and a circumplanetary...

This Webb image shows Uranus and six of its 27 known moons (most of which are too small and faint to be seen in this short exposure). Image credit: NASA / ESA / CSA / STScI / J. DePasquale, STScI.

Hubble Investigates Surface Conditions on Four Uranian Moons: Ariel, Umbriel, Titania, and Oberon

Jun 11, 2025 by News Staff

In new research, astronomers using the NASA/ESA Hubble Space Telescope searched for signs of interactions between the magnetic environment and the surfaces...

This new composite image made with X-rays from NASA’s Chandra X-ray Observatory (blue and purple), radio data from the MeerKAT radio telescope (orange and yellow), and an optical image from PanSTARRS (red, green, and blue) shows the massive galaxy cluster PLCK G287.0+32.9. Image credit: NASA / CXC / CfA / Rajpurohit et al. / PanSTARRS / SARAO / MeerKAT / SAO / N. Wolk.

20-Million-Light-Year-Wide Cloud of Energetic Particles Spotted around Distant Galaxy Cluster

Jun 11, 2025 by News Staff

Astronomers have discovered the largest known cloud of energetic particles surrounding a galaxy cluster — the 20-million-light-year-wide cloud around...

In the new Webb/NIRCam image, the Sombrero galaxy’s huge bulge, the tightly packed group of stars at the galaxy’s center, is illuminated, while the dust in the outer edges of the disk blocks some stellar light. Image credit: NASA / ESA / CSA / STScI.

Webb Sees Sombrero Galaxy in Near-Infrared Light

Jun 10, 2025 by Natali Anderson

Using the NIRCam (Near-Infrared Camera) instrument aboard the NASA/ESA/CSA James Webb Space Telescope, astronomers have captured a new image of the Sombrero...

This image, taken with ESO’s Very Large Telescope in Chile, shows the RIK113 system. Image credit: ESO / Ginski et al.

Astronomers May Have Caught Still-Forming Gas Giant around RIK 113

Jun 10, 2025 by Natali Anderson

Astronomers using ESO’s Very Large Telescope (VLT) have captured spectacular images of an exceptionally structured planet-forming disk around the star...

This Hubble image shows IC 758, a barred spiral galaxy some 60 million light-years away in the constellation of Ursa Major. 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. 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 Looks at Stunning Barred Spiral Galaxy: IC 758

Jun 9, 2025 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured a striking new photo of IC 758, a spiral galaxy located in the constellation of Ursa Major. This Hubble...

This illustration depicts IXPE’s measurements of X-ray polarization emitting from 1E 1841-045. Image credit: Michela Rigoselli / Italian National Institute of Astrophysics.

IXPE Measures X-ray Polarization of Magnetar Outburst

Jun 6, 2025 by News Staff

Magnetars are neutron stars with ultra-strong magnetic fields that are about a quadrillion times greater than the magnetic field of Earth. These huge magnetic...

This artist’s concept portrays the supermassive black hole at the center of the Milky Way Galaxy, known as Sagittarius A*. Image credit: NASA / ESA / CSA / Ralf Crawford, STScI.

New Study Shows How Astrophysicists Can Use Black Holes as Particle Supercolliders

Jun 4, 2025 by News Staff

New research by physicists from the University of Oxford, Johns Hopkins University and the Institute of Astrophysics in Paris shows that collisions between...

An artist’s illustration of TOI-6894b behind its host star. Image credit: Mark Garlick / University of Warwick.

Giant Exoplanet Found Orbiting Low-Mass Star TOI-6894

Jun 4, 2025 by News Staff

The discovery of TOI-6894b — an exoplanet around 86% the size of Jupiter in orbit around a 0.2-solar-mass red dwarf — highlights the need for...

This artist’s impression shows the evolution of the Universe beginning with the Big Bang on the left followed by the appearance of the Cosmic Microwave Background. The formation of the first stars ends the cosmic dark ages, followed by the formation of galaxies. Image credit: M. Weiss / Harvard-Smithsonian Center for Astrophysics.

New Study Finds No Evidence of Tension in Hubble Constant

Jun 3, 2025 by News Staff

As part of the Chicago-Carnegie Hubble Program, astronomers using the NASA/ESA/CSA James Webb Space Telescope have performed new measurements of the Hubble...

These images illustrate three possible encounter scenarios between our Milky Way Galaxy and the neighboring Andromeda galaxy. Top left: Messier 81 and Messier 82. Top right: NGC 6786. Bottom: NGC 520. Image credit: NASA / ESA / STScI / DSS / Till Sawala, University of Helsinki / Joseph DePasquale, STScI.

Our Milky Way Galaxy May Escape Collision with Andromeda, New Research Suggests

Jun 3, 2025 by News Staff

It is commonly believed that our own Milky Way Galaxy is on a collision course with the neighboring Andromeda galaxy. As a result of their merger, predicted...

This artistic impression depicts the stage at which WASP-121b accumulated most of its gas, as inferred from the latest results. Image credit: T. Müller, MPIA & HdA.

Webb Detects Silicon Monoxide in Atmosphere of Ultrahot Jupiter WASP-121b

Jun 2, 2025 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected water, carbon monoxide, and silicon monoxide in the dayside atmosphere of WASP-121b...

This Hubble image shows the barred spiral galaxy NGC 685. The color image was made from separate exposures taken in the ultraviolet, visible and near-infrared regions of the spectrum with Hubble’s Wide Field Camera 3 (WFC3). It is based on data obtained through six filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / J. Lee / F. Belfiore.

Hubble Space Telescope Sees Star-Forming Spiral Galaxy: NGC 685

Jun 2, 2025 by Enrico de Lazaro

NGC 685 is rich in star-forming nebulae, seen as glowing pink clouds in the new image from the NASA/ESA Hubble Space Telescope. This Hubble image shows...