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Astronomers discover less metallic star system in the Milky Way

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Astronomers discover less metallic star system in the Milky Way

The structure found in the Milky Way has a lower proportion of heavy elements than any other. star system known in our galaxy… Discovery described in a scientific article published this Wednesday (5) in the journal Naturewas made through the Gemini Observatory, a program of the US National Optical Infrared Astronomy Research Laboratory (NOIRLab).

According to observations, the stars in this stream were detached from the ancient star cluster and are relics of the early days of the Milky Way, which may provide data on the formation of the first stars.

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An international team of researchers, including members of the European Union, Canada and Russia, is responsible for the discovery of C-19, the so-called stellar stream south of the Milky Way. Its orbit extends about 20,000 light years from the galactic center at its closest point and about 90,000 light years from the farthest point.

This stellar stream, known as C-19, covers a large area of ​​the night sky, about 30 times the width of the full moon.

The star system covers an area equivalent to 30 full moons in the Milky Way.

According to scientists, the star system occupies an impressive area in the night sky – about 30 times the width. Key – although not visible to the naked eye.

Using the Gemini North Telescope in Hawaii and the Gemini Remote Access to CFHT SPADES Spectrograph (GRACES) instrument, both from the Gemini Observatory, the team realized that C-19 was the remnant of a globular cluster.

Globular clusters were previously thought to contain at least 0.2% metal, but C-19 has an unprecedented level of less than 0.05% metallicity.

The discovery that a weak metallic flux arises from a globular cluster has implications for star formation. clusters stars and galaxies in the early universe.

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The animation shows how a globular star cluster orbiting a galaxy still forming the Milky Way could have been torn apart by the gravity of an evolving galaxy and become C-19 stellar stream.

In fact, the very existence of this stream indicates that globular clusters and the first building blocks of the Milky Way must have formed in a low-metal environment before successive generations of stars supplied the universe with heavier elements.

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“It is not known if globular clusters exist with so few heavy elements. Some theories even suggested that they could not have formed, ”commented Nicholas Martin of the Astronomical Observatory in Strasbourg, the main author of the study. “Other theories suggest that they all disappeared long ago, making this a fundamental discovery for our understanding of how stars formed in the early universe.”

The team members originally detected C-19 in data from the Gaia satellite using an algorithm they developed specifically to detect stellar streams. The stars in C-19 were also identified by the Pristine Survey – a search for the least metallic stars in and around the Milky Way with the Canada-France-Hawaii telescope – as interesting enough to warrant follow-up observations.

The distribution of very dense groups of stars in the Milky Way, called globular clusters, is superimposed on a galaxy map compiled from data from the Gaia satellite. Each point represents a cluster of several thousand to several million stars. The color of the dots shows their metallicity, that is, the content of heavy elements in them relative to the Sun. The C-19 stars are marked with blue symbols. Credit: N. Martin / Astronomical Observatory of Strasbourg / CNRS; Telescope Canada-France-Hawaii / Coelum; ESA / Gaia / DPAC

To determine the origin of the stars that make up C-19, astronomers needed detailed GRACES spectra. The team also collected data using a spectrograph installed at the Gran Telescopio Canarias in La Palma, Canary Islands.

“GRACES provided important clues to the fact that C-19 is a discontinuous globular cluster rather than a more ordinary interrupted dwarf galaxy,” explained Kim Venn of the University of Victoria, principal investigator of the GRACES observations. “We already knew that this was a very low metal stream, but identifying it as a globular cluster required the precision of metallicity and detailed chemistry available only with high resolution spectra.”

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The new study also suggests that C-19 must have formed from very early generations of stars, making the cluster a remarkable relic from when the first star clusters formed.

Consequently, this discovery improves our understanding of the formation of stars and star clusters that emerged shortly after the Big Bang, and provides a natural laboratory for studying the oldest structures in galaxies.

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Xaiomi is launching its latest product in Europe, the Redmi Buds 4 Pro, with up to 36 hours of battery life.

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Xaiomi is launching its latest product in Europe, the Redmi Buds 4 Pro, with up to 36 hours of battery life.

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The brand has just launched the product overseas and there is no word yet on when it will launch in Brazil.

Playback/Pixabay
Playback/Pixabay

Xiaomi showed the world its new product, last Tuesday (4), the global version of their Redmi Bud 4 Pro headphones without the manufacturer’s premium wire. With a battery that can last an incredible 36 hours, the device will be connected via Bluetooth 5.3 and the high-definition LDAC codec. The product also features water and dust resistance, as well as active noise suspension capability that uses artistic intelligence to eliminate outside noise up to 43db.

The launch was only announced abroad, in Europe, with a suggested price of around 90 euros (about 463 reais at the current price without taxes). However, there is no information about the arrival of new items in Brazil yet. However, its consumers are already looking forward to the novelty.

Redmi Buds 4 Pro are TWS (True Wireless Stereo) earbuds containing two diposros speakers on each side: a large 10mm diameter aluminum one and a smaller 6mm titanium one, which can be used to play higher sounds. However, the device is compatible with Sony’s LDAC codec, capable of playing files at up to 990 kbps, but in this particular configuration, the device will have to compete with this codec. Redmi Bud still supports AAC and SBC codecs and has an immersive mode very similar to Airpods Space Audio.

The brand, in addition to the value for the consumer, compatible in many models with his income, is loved by the public for presenting excellent telephone devices and always with the most modern accessories. The company is one of the most popular brands in the country, ranking 3rd behind Motorola and Samsung by 11.45%.

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Wild Hearts: Watch 7 minutes of gameplay from EA’s action game

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Wild Hearts: Watch 7 minutes of gameplay from EA's action game

The game under the EA Originals label is inspired by games like Monster Hunter.

This Wednesday (5) Electronic Arts released First gameplay trailer for Wild Hearts. Developed in collaboration with Omega Force, the action game from EA Originals offers gameplay inspired by games like Monster Hunter from Capcom. The new trailer introduces some of the game’s mechanics with the tools available to the player, as well as showing how Hunt for the Fangs.

7 minute video starts with player on a large open map with oriental aesthetics. First the character uses some tools like a propeller for gliding, as well as a kind of ballista that connects hooks in different places to make it easier to cross the map. The trailer soon puts the player up against Kingtusk, a giant boar, but the fight doesn’t go as expected.

Wild Hearts is inspired by Monster Hunter and will support crossplay across platforms for up to 3 players.

After dying when attacked by a monster, we see the second moment of the trailer, where the hunt takes place with the help of another player, demonstrating some of the mechanics of playing together with up to three players. In the second attempt, we see a full fight, up to the victory over Kingtusk.. In one of the most interesting moments of the fight, we see how one of the monster’s horns is torn off, but soon he gets up and grows even bigger horns, which makes him a more dangerous opponent.

Wild Hearts will be cross-platform play on different platforms

Wild Hearts was officially unveiled last Wednesday (28) and is currently developed by Omega Force studio, known for works such as Koei Tecmo’s Dynasty Warriors series and Persona 5 Strikers. According to a press release sent by EA. the game there will be cross-platform crossplay up to three people.

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The plot of the game takes place in Azuma no Kuni – Kuni in Japanese can be translated as country, land or region. The player must hunt down the monsters and bring the Azuma region back to life. For this it will be necessary realize the art of “karakuri”which are technological structures available to the player that offer bombs and tools for combat and transition.

wild hearts will go on sale February 17, 2023, with the aim of replicate the success of other EA Originals games like It Takes Two. The game has confirmed versions for PlayStation 5, Xbox Series X|S, and PC, where it will be available through Origin, Steam, and the Epic Games Store.



Sony pledges to continue releasing its own PlayStation 4 games
Launches on the old platform will be evaluated by the company on a case-by-case basis.

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Gigantosaurus: Dino Kart, a very special kart race

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Gigantosaurus: Dino Kart, a very special kart race

Outright Games recently revealed that Gigantosaurus: Dino Kart, which is in development for PC and consoles, already has a release date.

Come and find out a little more about the game and when it will be released.

British studio Outright Games, in partnership with French studio Cyber ​​Group Studios, recently revealed that Gigantosaurus: Dino Kart will release next year, 2023.

Operating Systems Cyber ​​Group Studios is the team best known for creating and developing familiar animated series such as the one that gave the game its name.

Gigantosaurus: Dino Kart is based on the hit TV series Gigantosaurus currently streaming worldwide on Disney+ and Netflix, and airing on major international channels such as Disney Junior (worldwide), France Télévisions, POP (UK) , Super RTL (Germany), RAI yoyo. (Italy), RTVE - Clan (Spain), CCTV (China), TV Azteca (Mexico) and NHK (Japan).

This series currently consists of 3 seasons of 52 episodes (about 11 minutes each) and is based on the book by Johnny Duddle published by Bonnier Books UK Ltd which has sold over 600,000 copies worldwide. The series follows the adventures of four young dinosaurs - Rocky, Bill, Tiny and Mazu - as they go on a mission to explore their world, face their fears, work together to solve problems, learn more about the mysterious Giganotosaurus along the way and, of course, get pleasure.

Along with the announcement of the game's release date, the platforms it will be available on were also revealed: Nintendo Switch, Playstation 4, Playstation 5, Xbox One, Xbox Series X, PC, and Google Stadia.


As the name suggests, Gigantosaurus: Dino Kart is a kart racing game, but it takes place in a very calm and accessible universe, making the game geared towards kids and families (just like the series released by their studios).

Dino Kart racing takes place in Cretacia in a fast paced and fun karting championship that is almost as big as the appetite of the Gigantosaurus!

Players of all ages can (and should) compete against their friends and family on original maps. Up to four players can play together in split-screen multiplayer, making the game a real family adventure.

Players can choose from eight different characters, including the famous Bill, Mazu, Rocky, and Tiny, who will speed through about fifteen tracks in various Cretan environments full of obstacles and challenges, in which the opponents themselves will also be part of the challenge.

In each race, players will be able to acquire special abilities for different purposes, and this will give them (or not) the necessary stock to win the race. For example, they can speed up the creation of short cuts during a race, or temporarily gain additional jet thrust... while staying away from the Giganotosaurus, the largest and most ferocious dinosaur on earth.

Terry Malham, CEO of Outright Games, noted that "We're so excited to be working with Cyber ​​Group Studios again on a new Gigantosaurus game - this time the iconic dinosaur vehicles are in the spotlight! We look forward to seeing players of all ages play as their favorite characters in the world of Giganotosaurus in their first kart game. We can't wait to share it with everyone next year!"

In turn, Thierry Braille, VP of Interactive and Videogame Division and Dominique Bourse, COO of Cyber ​​Group Studios, said:We're thrilled to be teaming up with our friends at Outright Games for our second game featuring Gigantosaurus and all of the series' favorite characters. We're upping the ante with this new video game that turns into a thrilling kart race!"


Gigantosaurus: Dino Kart will be released in 2023 on Nintendo Switch, Playstation 4, Playstation 5, Xbox One, Xbox Series X, PC and Google Stadia.

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