Tag Archive for 'Star'

This artist’s impression shows a field of Population III stars as they would have appeared a mere 100 million years after the Big Bang. Image credit: NOIRLab / NSF / AURA / J. da Silva / Spaceengine.

Cosmological Radio Signal Will Help Astronomers Detect Universe’s First-Generation Stars

Jun 20, 2025 by News Staff

The first generation of stars (Population III) must have formed from the unenriched gas that permeated the infant Universe. These stars produced the first...

The Bogong moth (Agrotis infusa), female. Image credit: Lucinda Gibson & Ken Walker, Museum Victoria / CC BY 3.0.

Bogong Moths Use Starry Night Sky as Compass, Scientists Say

Jun 19, 2025 by News Staff

Each spring, billions of Bogong moths (Agrotis infusa) escape hot conditions across southeast Australia by migrating up to 1,000 km to a place that they...

This VLT/MUSE image shows a detailed, thousand-color image of NGC 253. Image credit: ESO / Congiu et al.

VLT Captures Most Detailed Image Ever of NGC 253

Jun 18, 2025 by News Staff

Astronomers using the Multi Unit Spectroscopic Explorer (MUSE) instrument on ESO’s Very Large Telescope (VLT) have observed the active starburst (star-forming)...

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...

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...

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 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...

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...

A composite of radio, X-ray, and infrared emission of the field of ASKAP J1832-0911. Image credit: Wang et al., doi: 10.1038/s41586-025-09077-w.

Radio Wave- and X-Ray-Emitting Star is Unlike Anything Astronomers Have Seen in Our Galaxy

May 30, 2025 by News Staff

ASKAP J1832-0911 — likely a magnetar or an extremely magnetized white dwarf — emits pulses of radio waves and X-rays for two minutes every...

This image is a snapshot from a 16-minute time-lapse movie showing the formation and collapse of a complexly shaped plasma stream traveling at almost 100 km per seconds in front of a coronal loop system. This is likely the first time such a stream, which the scientists refer to as plasmoid, has been observed, leaving them wondering about the physical explanation of the observed dynamics. This image was taken by the Goode Solar Telescope at Big Bear Solar Observatory using the new coronal adaptive optics system Cona. The image shows the hydrogen-alpha light emitted by the solar plasma. The image is artificially colorized, yet based on the color of hydrogen-alpha light, and darker color is brighter light. Image credit: Schmidt et al. / NJIT / NSO / AURA / NSF.

Solar Astronomers Capture Most Detailed Images and Videos Yet of Sun’s Corona

May 27, 2025 by News Staff

To make these high-resolution images and movies, astronomers from NSF’s National Solar Observatory and New Jersey Institute of Technology developed a...

An AI impression of a compact binary system. Image credit: Gemini AI.

Newly-Discovered Compact Binary System Formed when Neutron Star Orbited inside Another Star

May 22, 2025 by News Staff

This binary system contains a rapidly spinning millisecond pulsar called PSR J1928+1815 and its helium star companion. An AI impression of a compact binary...

The first visible-light image of green aurora on Mars (left), taken by the Mastcam-Z instrument on NASA’s Perseverance rover. On the right is a comparison image of the night sky of Mars without aurora but featuring the Martian moon Deimos. The moonlit Martian night sky, lit up mostly by Mars’ nearer and larger moon Phobos (outside the frame) has a reddish-brown hue due to the dust in the atmosphere, so when green auroral light is added, the sky takes on a green-yellow tone, as seen in the left image. Image credit: NASA / JPL-Caltech / ASU / MSSS / SSI.

Perseverance Detects Visible-Wavelength Aurora on Mars

May 19, 2025 by News Staff

Mars hosts various auroral processes despite the planet’s tenuous atmosphere and lack of a global magnetic field. To date, all aurora observations have...

An artist’s illustration of a solar storm. Image credit: NASA.

Radiocarbon Spike 14,350 Years Ago was Caused by Strongest Known Solar Storm, Study Confirms

May 15, 2025 by News Staff

The Sun rarely produced extreme solar particle events, orders of magnitude stronger than everything directly observed. Their enormous power can greatly...

An artist’s impression of a debris disk around the Sun-like star HD 181327. Image credit: NASA / ESA / CSA / STScI / Ralf Crawford, STScI.

Webb Detects Crystalline Water Ice in Debris Disk around Young, Sun-Like Star

May 14, 2025 by News Staff

Water ice heavily influences the formation of giant planets and may also be delivered by comets to fully formed rocky planets. Using data from the Near-Infrared...

An artist’s impression of a neutron star that is ‘evaporating’ slowly via Hawking-like radiation. Image credit: Daniëlle Futselaar / Artsource.nl.

Objects in Our Universe Evaporate Faster than Thought, Scientists Say

May 12, 2025 by News Staff

In a 2023 paper, Professor Heino Falcke and his colleagues at Radboud University showed that not only black holes, but also all other objects in the Universe...

The tidal disruption event AT2024tvd. Image credit: NASA / CXC / University of California, Berkeley / Yao et al. / ESA / STScI / HST / J. DePasquale.

Wandering Supermassive Black Hole Discovered 600 Million Light-Years Away

May 8, 2025 by News Staff

This supermassive black hole was discovered thanks to the newly-identified tidal disruption event AT2024tvd, an astronomical phenomenon in which a star...

An artist’s impression of a magnetar. Image credit: NASA’s Goddard Space Flight Center / S. Wiessinger.

Magnetar Flares May Be Responsible for Creation and Distribution of Gold and Other Heavy Elements

May 7, 2025 by News Staff

Since the Big Bang, the early Universe had hydrogen, helium, and a scant amount of lithium. Later, some heavier elements, including iron, were forged in...

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