The news that matter in Europe
The news that matter in Europe
Asteroid 2024 PT5, which is currently hurtling towards Earth, rather than burning up in the atmosphere, will likely remain in orbit and become a minimoon. However, it will be a fleeting visit and will probably only stay in the planet’s gravitational grip for two months.
The asteroid was…
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The Roscosmos State Corporation has published a satellite image of St. Petersburg, which shows the Main Naval Parade, which took place on Sunday, July 28, in honor of Navy Day. The Roscosmos press service explained that the image obtained using the Resurs-P satellite shows this very city,…
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Twice as massive as the Sun, the star HL Taurus has long been in view of ground-based and space-based telescopes
The ALMA radio astronomy telescope (ALMA) has provided the first detailed images of water molecules in the disk where planets can be born from the very young star HL Tauri (HL…
Scientists are exploring an idea that could save our planet from global warming by blocking the sun: a “giant umbrella” place in space to block out some of the sun’s light.
Led by Yoram Rozen and his team at the Asher Space Research Institute and Technion-Israel Institute of…
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The “Giant Umbrella” will be deployed in space
Scientists are exploring an idea that could save our planet from global warming: placing a “giant umbrella” in space to block some of the Sun’s light.
The team is led by Israeli Technion Institute professor Yoram Rosen and is…
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The European Space Agency’s (ESA) Ariane 6 rocket will fly for the first time on June 15, 2024. It will carry an array of small satellites, including two from NASA, ESA officials added.
After four years of delays, Ariane 6 is making progress: a scaled-down model of the heavy-lift rocket…
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Iran says it has sent a capsule of animals into orbit as it prepares for manned missions in the coming years, the Associated Press reported, cited by BTA.
Telecommunications Minister Isa Zarepour announced that the capsule was launched at an altitude of 130 km. He did not specify what…
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The cargo spacecraft was launched on Friday from the Baikonur Cosmodrome
The Progress MS-25 cargo spacecraft, which was launched on Friday from the Baikonur Cosmodrome, docked with the Poisk module of the Russian segment of the International Space Station (ISS), Roscosmos reported, as quoted…
In 10 billion years we will be part of a planetary nebula Scientists have made predictions about what the last days of our solar system will look like and when they will happen. At first, astronomers thought the Sun would become a planetary nebula – a glowing bubble of gas and cosmic dust –…
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NASA is ready to create an Airbnb that is out of this world. The US space agency has granted a construction technology company $60 million to build a house on the moon by 2040, which will be not only for astronauts, but also for ordinary civilians.
The plan is to launch a giant 3D printer on…
Astronomers analyzing data from the James Webb telescope have identified carbon dioxide in a specific region on the icy surface of Jupiter’s moon Europa, reported AFP and the press service of the European Space Agency (ESA).
The carbon dioxide is from an ocean beneath Europa’s surface,…
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It is not yet known whether they are of natural or artificial origin
Harvard professor Avi Loeb announced that he has completed his analysis of small spherical fragments of the space body IM1. The object crashed into the Pacific Ocean in 2014 and has since been claimed to be from another…
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In the Orthodox metropolis of Tamasos and Orini, a planetarium was opened last week, which is one of the largest in Europe and the most modern so far. The facility, which was built on the territory of the metropolitanate in its immediate vicinity, was opened by the President of Cyprus, Nikos…
El antiguo satélite espacial ha estado en las proximidades de nuestro planeta desde el año 100 a. Los astrónomos han descubierto una nueva Tierra cuasi-luna, un cuerpo cósmico que la orbita pero está gravitacionalmente unido al Sol, informó el Daily Mail. El objeto espacial, llamado 2023 FW13, fue descubierto por…
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Have you ever wondered what the moon smells like?
In an article for Nature magazine, French “fragrance sculptor” and retired scientific consultant Michael Moiseev says his latest creation was inspired by a description of the lunar surface by one of the first humans to walk on the moon…
Vous êtes-vous déjà demandé à quoi ressemble la lune ? Dans un article du magazine Nature, le « sculpteur de parfums » français et consultant scientifique à la retraite Michael Moiseev explique que sa dernière création a été inspirée par une description de la surface lunaire par l’un des premiers humains à avoir marché sur la lune…
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Roscosmos admitió: No sabemos qué dañó nuestras dos naves espaciales Su falla en un corto espacio de tiempo puede indicar una crisis en el programa espacial de Moscú Roscosmos aún no ha aclarado las razones exactas de las situaciones inusuales con Soyuz MS-22 y Progress MS- 21 nave espacial, dijo…
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ESPACIO. SpaceX lanzará hoy lunes 17 de abril a las 8:00 a. m. CT la primera prueba de vuelo de un cohete Starship y Super Heavy totalmente integrado desde Starbase en Texas. El sitio web oficial explica que “Starship es un sistema de transporte totalmente reutilizable diseñado para transportar tanto…
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Emirati national Aisha Al Yazeedi, a research scientist at the NYU Abu Dhabi (NYUAD) Center for Astro, Particle, and Planetary Physics, has published her first research paper, featuring some key findings on the evolution of galaxies.
Galaxies eventually undergo a phase in which they lose most of their gas, which results in a change into their properties over the course of their evolution. Current models for galaxy evolution suggest this should eventually happen to all galaxies, including our own Milky Way; Al Yazeedi and her team are delving into this process.
Composite RGB image of the Blob Source extracted from the DESI Legacy Imaging Surveys (Dey et al.(2019), legacysurvey.org). MaNGA _eld of view is shown in orange. Gray box corresponds to the GMOS _eld of view. Credit: Dey et al.(2019), legacysurvey.org
Commenting on the findings, Al Yazeedi said: “The evolution of galaxies is directly linked to the activity of their central supermassive black hole (SMBH). However, the connection between the activity of SMBHs and the ejection of gas from the entire galaxy is poorly understood. Observational studies, including our research, are essential to clarify how the central SMBH can influence the evolution of its entire host galaxy and prove key theoretical concepts in the field of astrophysics.”
Titled “The impact of low luminosity AGN on their host galaxies: A radio and optical investigation of the kpc-scale outflow in MaNGA 1-166919,” the paper has been published in Astronomical Journal. Its findings outline gas ejection mechanisms, outflow properties, and how they are related to the activity of the supermassive black hole (SMBH) at the center of the host galaxy.
To that end, the paper presents a detailed optical and radio study of the MaNGA 1-166919 galaxy, which appears to have an Active Galactic Nucleus (AGN). Radio morphology shows two lobes (jets) emanating from the center of the galaxy, a clear sign of AGN activity that could be driving the optical outflow. By measuring the outflow properties, the NYUAD researchers documented how the extent of the optical outflow matches the extent of radio emission.
Superposition of optical z-band MzLS image isophotes (gray color) and our highest spatial resolution radio image in S band (in blue). Optical image has a spatial resolution of 0:0084, while S-band radio data { 0:009. Credit: NYU Abu Dhabi
Al Yazeedi is a member of NYUAD’s Kawader program, a national capacity-building research fellowship that allows outstanding graduates to gain experience in cutting-edge academic research. The three-year, individually tailored, intensive program is designed for graduates considering a graduate degree or a career in research.
Her paper adds to the growing body of UAE space research and activities. The UAE has sent an Emirati into space, a spacecraft around Mars, and recently announced plans to send a robotic rover to the Moon in 2022, ahead of the ultimate goal to build a city on Mars by 2117.
The above figure is a GMOS outflow map with radio contours overlaid in black. The outflow velocities show a clear spatial separation of “red” and “blue” components. It strongly suggests a biconical outflow and nicely shows the correspondence between the optical outflow and radio emission. Credit: NYU Abu Dhabi
Emirati women are playing a key role in the research and development behind these projects. The Mars Hope probe science team, which is 80 percent female, was led by Sarah Al Amiri, Minister of State for Advanced Sciences and chairperson of the country’s space agency.
Reference: “The impact of low luminosity AGN on their host galaxies: A radio and optical investigation of the kpc-scale outflow in MaNGA 1-166919” 3 August 2021, Astronomical Journal.
DOI: 10.3847/1538-4357/abf5e1
Artist’s depiction of a neutron star. Credit: ESO / L. Calçada
New models of neutron stars show that their tallest mountains may be only fractions of millimeters high, due to the huge gravity on the ultra-dense objects. The research is presented today at the National Astronomy Meeting 2021.
Neutron stars are some of the densest objects in the Universe: they weigh about as much as the Sun, yet measure only around 10km across, similar in size to a large city.
Because of their compactness, neutron stars have an enormous gravitational pull around a billion times stronger than the Earth. This squashes every feature on the surface to minuscule dimensions, and means that the stellar remnant is an almost perfect sphere.
Whilst they are billions of times smaller than on Earth, these deformations from a perfect sphere are nevertheless known as mountains. The team behind the work, led by PhD student Fabian Gittins at the University of Southampton, used computational modeling to build realistic neutron stars and subject them to a range of mathematical forces to identify how the mountains are created.
The team also studied the role of the ultra-dense nuclear matter in supporting the mountains, and found that the largest mountains produced were only a fraction of a millimeter tall, one hundred times smaller than previous estimates.
Fabian comments, “For the past two decades, there has been much interest in understanding how large these mountains can be before the crust of the neutron star breaks, and the mountain can no longer be supported.”
Past work has suggested that neutron stars can sustain deviations from a perfect sphere of up to a few parts in one million, implying the mountains could be as large as a few centimeters. These calculations assumed the neutron star was strained in such a way that the crust was close to breaking at every point. However, the new models indicate that such conditions are not physically realistic.
Fabian adds: “These results show how neutron stars truly are remarkably spherical objects. Additionally, they suggest that observing gravitational waves from rotating neutron stars may be even more challenging than previously thought.”
Although they are single objects, due to their intense gravitation, spinning neutron stars with slight deformations should produce ripples in the fabric of spacetime known as gravitational waves. Gravitational waves from rotations of single neutron stars have yet to be observed, although future advances in extremely sensitive detectors such as advanced LIGO and Virgo may hold the key to probing these unique objects.