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Astronomy & Space

Astronomy & Space

Jet streams have been discovered in Mars’ magnetosheath by researchers.

Astronomy & Space Article
Using data gathered by NASA's MAVEN spacecraft, a team of researchers from Ume University and the Swedish Institute of Space Physics in Kiruna have discovered jet streams in the magnetosheath of Mars. This is the first time a jet of this kind has been discovered on a planet other than Earth's magnetosphere. The outcomes are distributed in the journal Science Advances. A mass of moving plasma in the magnetosheath is called a magnetosheath jet. It is recognized by being quicker or denser than its environmental elements, at times both quicker and denser. The region of space where a planet is
Astronomy & Space

Observing the full process of a tera-electron volt gamma-ray explosion when a big star dies

Astronomy & Space Article
New examination discoveries on the gamma-beam burst (GRB) named GRB 221009A from the Enormous High Height Air Shower Observatory (LHAASO) were distributed web-based by the journal Science on June 8, 2023. The LHAASO international collaboration completed the study, which was titled "A tera-electron volt afterglow from a narrow jet in an extremely bright GRB 221009A." A collimated burst of cosmic fireworks known as a gamma-ray burst (GRB) that lasted hundreds of seconds was unleashed approximately two billion years ago when a massive star that was more than 20 times heavier than the sun used up the fusion energy that was
Astronomy & Space

Not your typical cosmic explosion: A very lengthy baseline array reveals that classical novae are far from simple.

Astronomy & Space Article
A graduate student discovered evidence that classical novae may have been misunderstood as simple while using the Very Long Baseline Array (VLBA) at the National Radio Astronomy Observatory. At a press conference that took place during the 242nd proceedings of the American Astronomical Society in Albuquerque, New Mexico, the brand-new observations, which revealed non-thermal emission from a classical nova that was accompanied by a dwarf star, were made. V1674 Herculis is the fastest classical nova ever observed, and it is being hosted by a white dwarf and a dwarf companion. While concentrating on V1674Her with the VLBA, Montana Williams, an
Astronomy & Space

Chemical evidence for a pair-instability supernova from a huge initial star has been discovered by researchers.

Astronomy & Space Article
The cosmic "dark ages" that followed the Big Bang ended when the first stars illuminated the universe during the cosmic dawn. However, one of the great unsolved mysteries of the universe is how its mass is distributed. Mathematical reproductions of the development of the main stars gauge that the mass of the principal stars reached up to a few hundred sun-based masses. Among them, pair-instability supernovae (PISNe) were the first stars with masses between 140 and 260 solar masses. PISNe are very different from customary supernovae (i.e., Type II and Type Ia supernovae) and would have engraved a special synthetic
Astronomy & Space

The first-of-its-kind Mars broadcast from an ESA spacecraft was occasionally interrupted by rain on Earth.

Astronomy & Space Article
An European shuttle around Mars sent its first livestream from the red planet to Earth on Friday to check the twentieth commemoration of its sendoff, yet a downpour in Spain meddled on occasion. The views were provided by the European Space Agency's Mars Express, which was launched in 2003 from Kazakhstan by a Russian rocket. Each image traveled nearly 17 minutes to Earth, nearly 200 million miles (300 million kilometers), and another minute to ground stations. The transmission was disturbed now and again by the stormy climate at the profound space-hand-off radio wire in Spain. However, a sufficient number of
Astronomy & Space

The NIRISS sensor on Webb maps the atmosphere of an ultra-hot Jupiter-like exoplanet.

Astronomy & Space Article
Since its discovery in 2009, astronomers have been studying something 400 light-years away that is so enticing. One circle for WASP-18 b around the star is marginally bigger than our sun, which requires only 23 hours. There is nothing similar to it in our planetary group. Based on new data from the Canadian NIRISS instrument on the James Webb Space Telescope (JWST), a new study led by Ph.D. student Louis-Philippe Coulombe about this exoplanet, an ultra-hot gas giant 10 times larger than Jupiter, contains numerous surprises. Mapping an exoplanet An international team of astronomers has identified water vapor in the
Astronomy & Space

Multipurpose Space Skin Designed to Survive Extreme Conditions in Space is Ultra-Lightweight

Astronomy & Space Article
In the context of astronauts and space exploration, “space skin” might refer to the outer layer or design of a spacesuit. Spacesuits are specifically designed to protect astronauts from the harsh environment of space, including extreme temperatures, micrometeoroids, and radiation. The outer layer, often made of a durable material like Nomex or Kevlar, serves as a protective "skin" for the astronaut. According to a study from the University of Surrey and Airbus Defence and Space, a novel nano-barrier coating may help shield extremely light carbon composite materials from harsh conditions in space. The newly added functionality to previously created “space
Astronomy & Space

The Light Emitted by a sub-Neptune Planet’s Atmosphere is Measured by Researchers

Astronomy & Space News
Measuring the light emitted by the atmosphere of a sub-Neptune planet can reveal important details about its composition and physical properties. Researchers typically use spectroscopy to study the light emitted by such a planet. The atmosphere of exoplanet GJ 1214b was studied by measuring the heat it emits while orbiting its host star. The light emitted by a sub-Neptune exoplanet - a category of planets larger than Earth but smaller than Neptune - was directly detected by astronomers. Astronomers have been trying to get a better look at GJ 1214b, an exoplanet 40 light-years away from Earth, for over a
Astronomy & Space

Researchers Discover a New Way to Investigate the Early Universe’s Dynamics using Gravitational Waves

Astronomy & Space News
Gravitational waves are ripples in the fabric of spacetime caused by massive object acceleration. Albert Einstein's theory of general relativity predicted them, and they were directly detected for the first time in 2015. Since then, gravitational wave astronomy has advanced rapidly, providing us with a novel way to observe and study cosmic phenomena. According to a new study published in Physical Review Letters, researchers have discovered a new generic production mechanism of gravitational waves generated by a phenomenon known as oscillons, which can originate in many cosmological theories from the fragmentation into solitonic "lumps" of the inflaton field that drove
Astronomy & Space

Researchers use Artificial Intelligence to Discover a New Planet outside the Solar System

Astronomy & Space News
In the field of astronomy, artificial intelligence (AI) has become an increasingly valuable tool for discovering new planets outside of our solar system, known as exoplanets. Observing the light from a star and looking for small periodic variations in the light caused by the gravitational pull of a planet orbiting it is the traditional method for finding exoplanets. This method, however, is time-consuming and necessitates extensive data analysis. A research team used machine learning tools to detect evidence of a previously unknown planet outside of our solar system. The team recently demonstrated that machine learning can correctly determine the presence
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