Astronomy News

Powerful Gamma-Ray-Burst Caused Significant Disturbance in Earth’s Ionosphere, Astronomers Say

The artistic impression depicts the effect of GRB 221009A that provoked a significant disturbance in our planet’s ionosphere. Image credit: ESA / ATG Europe / CC BY-SA 3.0 IGO.
Nov 17, 2023 by News Staff

Using satellite observations, including from ESA’s International Gamma-Ray Astrophysics Laboratory (Integral) mission, and a new developed analytical model, astronomers proved that GRB 221009A — a very bright and long-lasting gamma-ray burst that occurred on October 9, 2022 — deeply impacted on the Earth’s ionospheric conductivity, causing a strong perturbation in the top-side ionosphere (at around 500 km) of our planet. The findings...

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An artist’s concept of the exoplanet LTT 1445Ac. Image credit: NASA / ESA / Leah Hustak, STScI.

Hubble Measures Size of Rocky Exoplanet LTT 1445Ac

Nov 16, 2023 by Natali Anderson

LTT 1445Ac, a terrestrial planet in the triple star system LTT 1445, is only 1.07 times the size of Earth, according to a paper to be published in the...

AT2022tsd is a fast and luminous extragalactic optical transient with rapid flares. Image credit: Ho et al., doi: 10.1038/s41586-023-06673-6.

Astronomers Detect Repeating Luminous Fast Blue Optical Transient

Nov 16, 2023 by News Staff

Astronomers have detected a mysterious and extremely bright event, named AT2022tsd, in a galaxy approximately 4.4 billion light-years away. AT2022tsd is...

This Euclid image shows NGC 6822, an irregular dwarf galaxy some 1.5 million light-years away in the constellation of Sagittarius. Image credit: ESA / NASA / Euclid / Euclid Consortium / J.-C. Cuillandre, CEA Paris-Saclay / G. Anselmi / CC BY-SA 3.0 IGO.

Euclid Images Irregular Dwarf Galaxy NGC 6822

Nov 16, 2023 by Enrico de Lazaro

ESA’s Euclid spacecraft has taken a stunning image of the irregular galaxy NGC 6822, which is located in the constellation of Sagittarius. This Euclid...

Meteoroids bombarded the Earth-Moon system 800 million years ago. Image credit: Murayama, Osaka University.

Can Comets Deliver Building Blocks for Life to Rocky Exoplanets?

Nov 15, 2023 by News Staff

In a paper published in the Proceedings of the Royal Society A: Mathematical Physical and Engineering Sciences, researchers at the University of Cambridge...

This Euclid image shows IC 342, a spiral galaxy 8.9 million light-years away in the constellation of Camelopardalis. Image credit: ESA / NASA / Euclid / Euclid Consortium / J.-C. Cuillandre, CEA Paris-Saclay / G. Anselmi / CC BY-SA 3.0 IGO.

Euclid Takes Close Look at IC 342

Nov 15, 2023 by Enrico de Lazaro

A new image from ESA’s Euclid mission provides a detailed look at the spiral galaxy IC 342, which is also known as the Hidden Galaxy. This Euclid image...

This Euclid image shows NGC 6397, a globular cluster some 7,800 light-years away in the constellation of Ara. Image credit: ESA / NASA / Euclid / Euclid Consortium / J.-C. Cuillandre, CEA Paris-Saclay / G. Anselmi / CC BY-SA 3.0 IGO.

Euclid Captures Best View Ever of Globular Cluster NGC 6397

Nov 14, 2023 by Enrico de Lazaro

The Euclid team has released a beautiful new image of NGC 6397, one of the closest globular clusters to Earth. NGC 6397, or GCl 74, is located 7,800 light-years...

Strongly nucleated dwarf galaxies, UCDs with envelopes and UCDs in the core of the Virgo Cluster. Image credit: Wang et al., doi: 10.1038/s41586-023-06650-z.

Astronomers Find Fossil Remnants of Ancient Dwarf Galaxies in Virgo Cluster

Nov 14, 2023 by News Staff

Astronomers using the Gemini North telescope have found the remnants of 106 galaxies as they transition into ultra-compact dwarf galaxies. Strongly nucleated...

This Hubble image shows NGC 1385, a barred spiral galaxy some 68 million light-years away in the constellation of Fornax. The color image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the ultraviolet, near-infrared, and optical parts of the spectrum. 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 / R. Chandar / J. Lee / PHANGS-HST Team.

Hubble Views Barred Spiral Galaxy NGC 1385

Nov 13, 2023 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured an amazing new photo of NGC 1385, a barred spiral galaxy in the constellation of Fornax. This Hubble image...

This image from ESA’s Euclid spacecraft shows the Horsehead Nebula, also known as Barnard 33, a giant star-forming region located 1,375 light-years away in the constellation of Orion. Image credit: ESA / Euclid / Euclid Consortium / NASA / J.-C. Cuillandre, CEA Paris-Saclay / G. Anselmi / CC BY-SA 3.0 IGO.

Euclid Captures Spectacular Image of Horsehead Nebula

Nov 9, 2023 by Enrico de Lazaro

The Euclid team has released a spectacularly panoramic and detailed image of the Horsehead nebula. This image from ESA’s Euclid spacecraft shows the...

Venus in real colors, processed from Mariner 10 images. Image credit: Mattias Malmer / NASA.

Astronomers Directly Detect Atomic Oxygen on Venus

Nov 8, 2023 by News Staff

Atomic oxygen is produced on the dayside of Venus by photolysis of carbon dioxide and carbon monoxide. Atomic oxygen is a key species in the mesosphere...

This image from ESA’s Euclid spacecraft shows the Perseus galaxy cluster. Image credit: ESA / Euclid / Euclid Consortium / NASA / J.-C. Cuillandre, CEA Paris-Saclay / G. Anselmi / CC BY-SA 3.0 IGO.

Euclid Focuses on Perseus Galaxy Cluster

Nov 8, 2023 by Enrico de Lazaro

A new image from ESA’s Euclid telescope shows approximately 1,000 galaxies belonging to the Perseus cluster — a cluster of galaxies 240 million...

This image from ESA’s Euclid spacecraft shows the Horsehead Nebula, also known as Barnard 33, a giant star-forming region located 1,375 light-years away in the constellation of Orion. Image credit: ESA / Euclid / Euclid Consortium / NASA / J.-C. Cuillandre, CEA Paris-Saclay / G. Anselmi / CC BY-SA 3.0 IGO.

ESA’s Euclid Mission Releases Its First Science Images

Nov 7, 2023 by News Staff

Euclid — built and operated by ESA, with contributions from NASA — has captured full-color images of a large cluster of galaxies, close-ups...

Bogdán et al. and Goulding et al. combined data from Webb and Chandra to identify the growing black hole at the center of UHZ1. Image credit: NASA / CXC / SAO / Bogdán et al. / ESA / CSA / STScI / L. Frattare / K. Arcand.

Growing Supermassive Black Hole Detected in Early Universe

Nov 7, 2023 by Enrico de Lazaro

Observations of quasars reveal that many supermassive black holes were in place less than 700 million years after the Big Bang. However, the origin of...

An artist’s concept of Kepler-385, the seven-planet system revealed in a new catalog of planet candidates discovered by NASA’s Kepler space telescope. Image credit: NASA / Daniel Rutter.

Kepler-385 Hosts Seven Large Exoplanets, Astronomers Say

Nov 6, 2023 by Natali Anderson

A new analysis of data from NASA’s retired Kepler space telescope has revealed a system of seven giant planets around Kepler-385. An artist’s concept...

This Hubble image shows NGC 941, an intermediate spiral galaxy some 55 million light-years away in the constellation of Cetus. 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 Spies Hazy-Looking Spiral Galaxy: NGC 941

Nov 6, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured a beautiful new image of the intermediate spiral galaxy NGC 941. This Hubble image...

This Hubble image shows Jupiter in ultraviolet light. Image credit: NASA / ESA / Hubble / M. Wong, University of California, Berkeley / Gladys Kober, NASA & Catholic University of America.

Hubble Space Telescope Captures Ultraviolet Image of Jupiter

Nov 2, 2023 by Enrico de Lazaro

NASA has released a beautiful ultraviolet image taken by the Hubble Space Telescope of the gas giant Jupiter. This Hubble image shows Jupiter in ultraviolet...

An artist’s impression of the Gliese 3470 planetary system. Image credit: Sci-News.com.

Mid-Phanerozoic Exoplanets Might Be Easier to Detect than Modern Earth

Nov 2, 2023 by News Staff

In the search for life in the Universe, Earth provides a template of evolution for the one habitable planet we know. Earth’s atmospheric composition...

Illustration depicting one interpretation of the exoplanet GJ 357d. Image credit: Chris Smith / NASA’s Goddard Space Flight Center.

Giant Exoplanets Are Potential ‘Agents of Chaos’ in Multiplanet Systems, Astronomers Say

Oct 31, 2023 by News Staff

Two new papers in the Astronomical Journal show that in some multiplanet systems, giant planets tend to kick their smaller neighbors out of orbit and wreak...

This composite image, taken by Webb’s NIRCam and MIRI instruments, shows the famous Crab Nebula. Image credit: NASA / ESA / CSA / Webb / STScI / Tea Temim, Princeton University.

Webb Reveals Never-Before-Seen Details in Crab Nebula

Oct 30, 2023 by News Staff

Using the Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI) onboard the NASA/ESA/CSA James Webb Space Telescope, astronomers are searching...

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