Astronomy News

Astronomers Detect Variability in Extragalactic X-ray Jets

An artist’s impression of a jet emanating from NGC 4993. Image credit: J.A. Biretta et al / NASA / ESA / Hubble Heritage Team / STScI / AURA / Sci-News.com.
May 30, 2023 by News Staff

Astronomers discovered only relatively recently that black hole jets emit X-rays, and how the jets accelerate particles to this high-energy state is a mystery. One leading model of how such jets generate X-rays expects the jets’ X-ray emissions to remain stable over long time scales (millions of years). However, University of Maryland astronomer Eileen Meyer and colleagues found that the X-ray emissions of a statistically significant number of jets...

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This OmegaCAM/VST image shows a part of the Vela supernova remnant. Image credit: ESO / VPHAS+ Team / Cambridge Astronomical Survey Unit.

OmegaCAM Sees Giant Filaments in Vela Supernova Remnant

May 30, 2023 by Enrico de Lazaro

The new image from the OmegaCAM instrument on ESO’s VLT Survey Telescope shows a spectacular part of the Vela supernova remnant. This OmegaCAM/VST image...

An artist’s impression of the Gliese 414 system. Image credit: Sci-News.com.

Study: One-Third of Red Dwarf Exoplanets Could Be in Habitable Zone

May 29, 2023 by News Staff

A team of U.S. astronomers has discovered that two-thirds of the planets around M dwarfs (red dwarf stars) could be roasted by extreme tidal forces, sterilizing...

This Hubble image shows NGC 298, a spiral galaxy some 89 million light-years away in the constellation of Cetus. The color image is a composite of separate exposures acquired by Hubble’s Advanced Camera for Surveys in visible and near-infrared light. 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 Space Telescope Captures Image of Little-Known Spiral Galaxy

May 29, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have obtained a remarkable new view of the small spiral galaxy NGC 298. This Hubble image shows NGC...

An artist’s impression of the TOI-2096 planetary system. Image credit: Lionel J. Garcia / University of Liège.

Astronomers Discover Two Large Exoplanets around Nearby Red Dwarf

May 25, 2023 by Natali Anderson

Using data from NASA’s Transiting Exoplanet Survey Satellite (TESS) and several ground-based telescopes, astronomers have discovered and validated a...

Vitral et al. suspect that an intermediate-mass black hole, weighing as much as 800 times the mass of our Sun, is lurking at the core of Messier 4. Image credit: NASA / ESA / Hubble / Sci.News.

Intermediate-Mass Black Hole May Be Lurking in Messier 4

May 25, 2023 by Natali Anderson

Messier 4 is a globular cluster full of ancient stars in the constellation of Scorpius, approximately 7,200 light-years away. Vitral et al. suspect that...

This composite image features four separate images that combine X-ray data from Chandra and infrared data from Webb, and some data from other telescopes like Hubble, Spitzer and XMM-Newton. Image credit: NASA / CXC / SAO / ESA / XMM-Newton / CSA / STScI / JPL / CalTech / ESO / L. Frattare / J. Major / K. Arcand.

Webb Captures Two Galaxies, Star-Forming Nebula, and Star Cluster

May 24, 2023 by Enrico de Lazaro

New images that combine data from the NASA/ESA/CSA James Webb Space Telescope and several space- and ground-based telescopes show spiral galaxies NGC 1672...

This enormous image from Webb reveals never-before-seen details of the Stephan’s Quintet. Image credit: NASA / ESA / CSA / STScI.

Parity Symmetry Violation in Orientation of Galactic Shapes Could Explain Abundance of Matter

May 23, 2023 by News Staff

Symmetry is a tidy and attractive idea that falls apart in our untidy Universe. Indeed, since the 1960s, some kind of broken symmetry has been required...

Akins et al. used microwave observations to spot the first polar cyclone on Uranus, seen here as a light-colored dot to the right of center in each image of the planet. The images use wavelength bands K, Ka, and Q, from left. Image credit: NASA / JPL-Caltech / VLA.

VLA Spots Polar Cyclone on Uranus

May 23, 2023 by News Staff

Astronomers using the Karl G. Jansky Very Large Array in New Mexico have observed a bright, compact spot centered at Uranus’ north pole at several wavelengths....

An artist’s impression of Quaoar and its two rings. Quaoar’s moon Weywot is shown on the left. Image credit: ESA / Sci.News.

Astronomers Discover Second Ring around Quaoar

May 23, 2023 by Natali Anderson

Quaoar is a classical trans-Neptunian object with an equivalent diameter of 1,100 km. An artist’s impression of Quaoar and its two rings. Quaoar’s...

Artist’s impression depicting the separation of the Schiaparelli module from the Trace Gas Orbiter, and heading for Mars. Image credit: D. Ducros / ESA.

Astronomers Simulate Message from Extraterrestrial Civilization to Earth

May 23, 2023 by News Staff

On May 24, 2023, as part of the A Sign in Space project, ESA’s ExoMars Trace Gas Orbiter (TGO) will transmit an encoded message to Earth to simulate...

An UAP from a declassified video captured by a U.S. Navy aircraft. Image credit: U.S. Navy.

Almost One-Fifth of Academic Survey Respondents Witnessed Unidentified Aerial Phenomena: Study

May 23, 2023 by News Staff

Recently, former and current government officials, legislators, and faculty in the United States have called for research on what their government terms...

These images of the Sun’s surface were captured by the Inouye Solar Telescope. Image credit: NSF / AURA / NSO.

Inouye Solar Telescope Captures New Images of Sun’s Surface

May 22, 2023 by News Staff

New images from the Visible-Broadband Imager (VBI) on NSF’s 4-m Inouye Solar Telescope show a variety of sunspots and quiet regions of the Sun. These...

This Hubble image shows JW39, a jellyfish galaxy some 900 million light-years away in the constellation of Coma Berenices. The color image was made from separate exposures taken in the visible, near-infrared and ultraviolet regions of the spectrum with Hubble’s WFC3 instrument. Six 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 / M. Gullieuszik / GASP Team.

Hubble Snaps Stunning Image of Jellyfish Galaxy

May 22, 2023 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured a striking new photo of a jellyfish spiral galaxy called JW39. This Hubble image shows JW39, a jellyfish...

An artist’s impression of the exo-Earth LP 791-18d. Image credit: NASA’s Goddard Space Flight Center / Chris Smith, KRBwyle.

Volcano-Covered Terrestrial Exoplanet Found Orbiting Nearby Star

May 19, 2023 by Natali Anderson

The newly-discovered planet has a radius of 1.03 Earth radii and a temperature between 27 and 127 degrees Celsius (81-261 degrees Fahrenheit), with the...

The two young, low-mass protostars HR 5999 and HR 6000 illuminate nearby dust, creating the reflection nebula Bernes 149. These stars grew out of the dusty dark cloud of Lupus 3, part of a larger complex of as many as nine dark clouds. Image credit: CTIO / NOIRLab / DOE / NSF / AURA / T.A. Rector, University of Alaska Anchorage & NSF’s NOIRLab / D. de Martin & M. Zamani, NSF’s NOIRLab.

Dark Energy Camera Captures Protostars in Nearby Interstellar Cloud

May 18, 2023 by News Staff

Using the 570-megapixel Dark Energy Camera at NSF/NOIRLab Cerro Tololo Inter-American Observatory in Chile, astronomers have produced a stunning image...

An artist’s rendition of SN 2020eyj, a white dwarf star that went supernova after pulling material from a helium companion star. Image credit: Adam Makarenko / W.M. Keck Observatory.

Astronomers Detect Radio Waves from Type Ia Supernova

May 18, 2023 by News Staff

The detection of the Type Ia supernova SN 2020eyj at radio wavelengths show that the exploded white dwarf had a helium-rich companion. An artist’s rendition...

The enlarged inset view reveals four images of SN Refsdal, spotted in 2014, arranged around a giant elliptical galaxy within the cluster. The light from the supernova passes so closely to the galaxy’s dense core that several light paths are redirected and focused toward Earth. The result is that astronomers see four images that form an Einstein Cross. The blue streaks wrapping around the galaxy are the stretched images of SN Refsdal’s parent spiral galaxy, which has been distorted by the warping of space. Computer models of the cluster predict that another image of the stellar blast will appear within 5 years. The red circle marks the possible location of the next supernova image. Astronomers may have missed an earlier appearance of the supernova in 1995, as marked by the blue circle. These multiple appearances of the exploding star are due to the various paths its light is taking through the maze of clumpy dark matter in the galactic grouping. Each image takes a different route through the cluster and arrives at a different time, due, in part, to differences in the length of the pathways the light follows to reach Earth. Image credit: NASA / ESA / S. Rodney, JHU / FrontierSN team / T. Treu, UCLA / P. Kelly, UC Berkeley / GLASS team / J. Lotz, STScI / Frontier Fields team / M. Postman, STScI / CLASH team / Z. Levay, STScI.

Light from Supernova Refsdal Helps Astronomers Measure Universe’s Expansion Rate

May 17, 2023 by News Staff

The gravitationally lensed Supernova (SN) Refsdal was discovered by University of Minnesota astronomer Patrick Kelly in 2014 in the field of MACS J1149.6+2223,...

This artist’s concept of shows the main-belt comet 238P/Read sublimating -- its water ice vaporizing as its orbit approaches the Sun. Image credit: NASA / ESA.

Webb Detects Water Vapor around Main-Belt Comet 238P/Read

May 16, 2023 by Enrico de Lazaro

The new observations from the Near-Infrared Spectrograph (NIRSpec) aboard the NASA/ESA/CSA James Webb Space Telescope show that the main-belt comet 238P/Read...

An artist’s impression of how astronomical forces affect the Earth’s motion, climate, and ice sheets. Image credit: NAOJ.

Astronomical Forcings Shaped Timing of Glacial Cycles during Early Pleistocene, Study Says

May 15, 2023 by News Staff

Glacial cycles during the Early Pleistocene epoch are characterized by a dominant 41,000-year periodicity and amplitudes smaller than those of glacial...

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