Astronomy News

Webb Spots Cosmic Seahorse

To the lower right of this Webb image is the lensing cluster SDSS J1226+2149 with a very large and bright elliptical galaxy at its center; thin, reddish, stretched-out arcs surround it; one arc is thick and much brighter; another red galaxy is large and warped, just next to the cluster core. Image credit: NASA / ESA / CSA / Webb / J. Rigby.
Apr 5, 2023 by News Staff

The lensing galaxy cluster SDSS J1226+2149 has magnified distant galaxies, warping their shapes and creating the bright smears of light spread throughout this image from the NASA/ESA/CSA James Webb Space Telescope. To the lower right of this Webb image is the lensing cluster SDSS J1226+2149 with a very large and bright elliptical galaxy at its center; thin, reddish, stretched-out arcs surround it; one arc is thick and much brighter; another red galaxy...

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This artist’s concept shows the brilliant glare of two quasars residing in the cores of two galaxies that are in the chaotic process of merging. Image credit: NASA / ESA / Joseph Olmsted, STScI.

Merger of Two Massive Disk Galaxies Produces Dual Quasar

Apr 5, 2023 by News Staff

Using the NASA/ESA Hubble Space Telescope and other space and ground-based observatories, astronomers have discovered SDSS J0749+2255, a closely bound...

The location of Gaia BH2 and Gaia BH1 in the Milky Way. This map of our Galaxy was also made by the Gaia mission. Image credit: ESA / Gaia / DPAC / CC BY-SA 3.0 IGO.

Gaia Discovers Its Second Black Hole

Apr 4, 2023 by News Staff

The newly-discovered dormant black hole, named Gaia BH2, is orbited by a red giant star, and has a mass of 8.9 solar masses. The location of Gaia BH2 and...

An artist’s conceptual rendering of interactions between a prospective exoplanet and its star. Image credit: NSF / Alice Kitterman.

Astronomers Detect Radio Emission Associated with Magnetic Field of Nearby Exoplanet

Apr 4, 2023 by News Staff

Observing magnetic star-planet interactions offers promise for determining the magnetic fields of exoplanets. Models of star-planet interactions predict...

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.

Astrophysicists Find New Evidence for Standard Model of Cosmology

Apr 4, 2023 by News Staff

Astrophysicists from SLAC National Accelerator Laboratory and Stanford University have measured the X-ray emission from galaxy clusters, which revealed...

An artist’s impression of the AT2018cow stellar explosion. Image credit: Phil Drury, University of Sheffield.

Astronomers Spot Flattest Known Stellar Explosion in Universe

Apr 3, 2023 by News Staff

The newly-observed stellar explosion, named AT2018cow, occurred approximately 180 million light-years away from Earth and belongs to a special class called...

This Hubble image shows UGC 2890, a small spiral galaxy some 30 million light-years away in the constellation of Camelopardalis. Image credit: NASA / ESA / Hubble / C. Kilpatrick.

Hubble Snaps Breathtaking New Image of UGC 2890

Apr 3, 2023 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope have produced a beautiful image of the side-on spiral galaxy UGC 2890. This Hubble image shows UGC 2890, a small spiral...

This composite image shows the Saturn Lyman-alpha bulge, an emission from hydrogen which is a persistent and unexpected excess detected by NASA’s Voyager 1 spacecraft, NASA’s Cassini probe, and the NASA/ESA Hubble Space Telescope between 1980 and 2017. Image credit: NASA / ESA / Lotfi Ben-Jaffel, IAP & LPL.

Saturn’s Rings are Heating Gas Giant’s Upper Atmosphere, Astronomers Say

Mar 30, 2023 by News Staff

The most feasible explanation is that icy ring particles raining down onto Saturn’s atmosphere cause this heating, according to a team of astronomers...

This map shows shield volcanoes on Venus. Image credit: Rebecca Hahn, Washington University in St. Louis.

Venus is Home to At Least 85,000 Volcanoes, Planetary Researchers Say

Mar 30, 2023 by News Staff

There are many thousands of volcanoes on the surface of Venus. These volcanoes provide clues into the interior properties of the planet, properties that...

This image shows the Spiderweb protocluster, seen at a time when the Universe was only 3 billion years old. Image credit: ESO / Di Mascolo et al. / NASA / ESA / Hubble / H. Ford.

ALMA Detects Huge Reservoir of Hot Gas in Very Distant Galaxy Protocluster

Mar 29, 2023 by News Staff

The galaxy protocluster is question is forming around the recently-discovered Spiderweb galaxy (also known as MRC 1138-262 or PKS 1138-262), an object...

An artist’s concept of a Neptunian Trojan asteroid. Image credit: NASA / ESA / G. Bacon, STScI / C. Fuentes, Harvard-Smithsonian Center for Astrophysics.

Neptunian Trojan Asteroids Exist in Broad Spectrum of Red Color, Astronomers Find

Mar 29, 2023 by News Staff

Neptunian Trojans are trans-Neptunian objects in 1:1 mean-motion resonance with the ice giant Neptune. These asteroids are generally thought to have been...

This image shows the strong-lensing galaxy Abell 1201 BCG and a gravitational arc. Image credit: NASA / ESA / Hubble / Nightingale et al., doi: 10.1093/mnras/stad587.

Astronomers Discover Ultramassive Black Hole in Abell 1201

Mar 29, 2023 by Natali Anderson

The newly-discovered ultramassive black hole has a mass of 32.7 billion solar masses and resides in the center of Abell 1201 BCG, a massive elliptical...

ESA’s XMM-Newton X-ray observatory recorded 20 dust rings, 19 of which are shown here in arbitrary colors. The image merges observations made two and five days after GRB 221009A erupted. Dark stripes indicate gaps between the detectors. A detailed analysis shows that the widest ring visible here, comparable to the apparent size of a full Moon, came from dust clouds located about 1,300 light-years away. The innermost ring arose from dust at a distance of 61,000 light-years -- on the other side of our Galaxy. Image credit: ESA / XMM-Newton / M. Rigoselli, INAF.

Astronomers Capture Reverse Shock Emission from Record-Breaking Gamma-Ray Burst

Mar 28, 2023 by News Staff

Astronomers have provided vital information in the global effort to understand GRB 221009A, one of the nearest and possibly the most-energetic gamma-ray...

The TRAPPIST-1 system is remarkable for its seven planets that are similar in size, mass, density, and stellar heating to the rocky planets Venus, Earth, and Mars in our own Solar System. This illustration shows what the rocky planet TRAPPIST-1b could look like based on the new study. Image credit: NASA / ESA / CSA / J. Olmsted, STScI.

Webb Measures Temperature of TRAPPIST-1b

Mar 28, 2023 by News Staff

The dayside of TRAPPIST-1b, the innermost planet in the seven-planet system TRAPPIST-1, has a temperature of about 227 degrees Celsius (441 degrees Fahrenheit),...

This Hubble image shows Z 229-15, a spiral galaxy located 390 million light-years away in the constellation of Lyra. Image credit: NASA / ESA / Hubble / A. Barth / R. Mushotzky.

Hubble Space Telescope Spots Very Luminous Seyfert Galaxy

Mar 27, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have taken a beautiful picture of the luminous spiral galaxy Z 229-15, which is found in the constellation...

An artist’s impression of the TOI-1266 planetary system. Image credit: Sci-News.com.

Astronomers in Hunt for Rocky Exoplanets in Venus Zone

Mar 23, 2023 by News Staff

To facilitate studies of exo-Venus candidates, astronomers from the University of California, Riverside, the University of California, Santa Cruz, Brown...

Hartwig et al. shed a new light on solving the mystery of the first stars from the complex data set of Galactic archaeology surveys. Image credit: Kavli IPMU.

Universe’s First Stars were Born in Small Clusters, Study Suggests

Mar 23, 2023 by News Staff

In unveiling the nature of the first stars, the main astronomical clue is the elemental compositions of the second generation of stars, observed as extremely...

This artist’s impression shows ‘Oumuamua, the first interstellar object discovered in our Solar System. Recent observations show that the object is moving faster than predicted while leaving the Solar System. Astronomers assume that venting material from its surface due to solar heating is responsible for this behavior. This outgassing can be seen in this artist’s impression as a subtle cloud being ejected from the side of the object facing the Sun. Image credit: NASA / ESA / Hubble / ESO / M. Kornmesser.

Astronomers Offer New Explanation for Interstellar Object Oumuamua’s Unusual Acceleration

Mar 23, 2023 by News Staff

The previously unreconciled acceleration of 1I/2017 U1 ‘Oumuamua, a strange object of extrasolar origin discovered on October 19, 2017 by the Pan-STARRS...

An artist’s impression of a gas-giant exoplanet. Image credit: Sci.News.

Low-Mass Stars are Able to Host Giant Jupiter-Like Exoplanets, Study Suggests

Mar 22, 2023 by News Staff

Gas giants, like other planets, form from protoplanetary disks of material around protostars. According to core accretion theory, they first form a core...

This artist’s illustration shows the ejection of a cloud of debris after NASA’s DART spacecraft collided with the asteroid Dimorphos. Image credit: ESO / M. Kornmesser.

VLT Observes Aftermath of Collision between DART and Dimorphos

Mar 21, 2023 by News Staff

On September 26, 2022, NASA’s DART spacecraft collided with the asteroid Dimorphos in a controlled test of our asteroid deflection capabilities. The...

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