Monday, September 27

planetas

astronomía, concurso, Espacio, estrellas, Fotografía, fotografía astronómica, imagenes, Noticias, planetas

The best images of the astronomical photography contest | Digital Trends Spanish

The space always offers us the most spectacular views. Fortunately, cameras have evolved so much in recent times that they can now capture that spectacularity. The Astronomy Photographer of the Year 2021 contest brings together the best images of the sky and space, and this week has announced the winners. The event organized by the Royal Observatory Greenwich is one of the most attractive events for lovers of astronomical photography and many people submit their images to compete. The competition is divided into eight categories: auroras; galaxies; our Moon; our Sun; people and space; planets, comets and asteroids; heavenly landscapes and stars and nebulae. This year, the main prize went to Suchang Dog and his photograph The Golden Ring, which shows an annular solar eclipse captu...
erupciones volcánicas, Espacio, jupiter, lunas, macro evento volcánico, Marte, NASA, Noticias, planetas, Venus, volcanes

Evidence of a volcanic macro event found on Mars | Digital Trends Spanish

According to NASA, a region of northern Mars, known as Arabia Terra, experienced thousands of super volcanic eruptions over a period of 500 million years. According to agency scientists, these are the most violent volcanic explosions ever known. These eruptions released water vapor, carbon dioxide, and sulfur dioxide into the air, breaking through the Martian surface about 4 billion years ago. “Each of these eruptions would have had a significant climatic impact; perhaps the released gas caused the atmosphere to thicken or block the Sun and cool the atmosphere, "explained Patrick Whelley, a geologist at NASA's Goddard Space Flight Center. "Martian climate modelers will have to do a bit of work to try to understand the impact of volcanoes." POT.After blowing up what could be equivalent ...
alma, astrónomos, Chile, Desierto de Atacama, discos protoplanetarios, Espacio, estrellas jóvenes, Noticias, planetas

Organic molecules detected in 5 protoplanetary disks | Digital Trends Spanish

Using the ALMA telescope, located in the Atacama desert (northern Chile), a group of astronomers has managed to map 18 organic and inorganic molecules in protoplanetary discs of five young stars. These would be IM Lup, GM Aur, AS 209, HD 163296 and MWC 480, and the new maps show that the chemical substances of these discs are not located uniformly in each of them, but that each disc is like a " different soup of planetary ingredients ”. These results suggest that planet formation occurs in diverse chemical environments and that, as they form, each planet can be exposed to very different molecules depending on their location on the disk. Planets form in the gas and dust disks, also known as protoplanetary disks, that surround young stars. The chemical composition of these disks can influ...
Espacio, Estrella, estrellas, Noticias, planetas, Sistema Solar, sol

Sun-like stars devour planets | Digital Trends Spanish

New research by Italian astronomers found that large numbers of Sun-like stars have devoured some of the planets around them. The study was published in Nature Astronomy and led by Lorenzo Spina, an astrophysicist at the Astronomical Observatory of Padua, in Italy. One of the main results indicates that up to a third of stars similar to ours have already swallowed their planets. According to the authors, this discovery could help rule out star systems that no longer contain Earth-like worlds. According to the researchers, when a planet is eaten, its heavy elements, such as iron, silicon and titanium, are scattered through the outermost layers of the star, and can be detected by astronomers looking for their own light absorption signals. of those elements. "If a star is abnormally rich i...
atmósfera, Espacio, Exoplanetas, hidrogeno, Noticias, planeta, planetas, tierra, vida extraterrestre

New exoplanets will guide search for extraterrestrial life | Digital Trends Spanish

Researchers at the University of Cambridge, in England, discovered a new class of exoplanets that, according to them, would be excellent targets for the search for extraterrestrial life. These celestial bodies were called Hycean planets and are covered by oceans with atmospheres rich in hydrogen, which makes them so different from those on Earth. "These planets open a new avenue in our search for life elsewhere," says Nikku Madhusudhan, principal investigator at the Cambridge Institute of Astronomy. "It is exciting that habitable conditions can exist on planets so different from Earth," he adds. The researchers also indicate that this important finding "could mean that finding biosignatures of life outside our solar system in the next two to three years is a real possibility." According...
análisis, astrónomos, calentamiento, caliente, Espacio, estructuras, galaxias, investigacion, misiones, Noticias, planetas, temperatura, universo

The universe keeps getting hotter | Digital Trends Spanish

Research by the Ohio State University Center for Cosmology and Astroparticle Physics examined the thermal history of the universe and concluded that it is getting hotter and hotter. The work was published in the magazine Astrophysical JournaLy determined that the temperature of gas throughout the universe has increased more than ten times during the last ten billion years, reaching approximately 2.2 million degrees Celsius. “As the universe evolves, gravity pulls dark matter and gas into space to form galaxies and galaxy clusters. The drag is violent, so violent that more and more gas is discharged and heated, ”explains Yi-Kuan Chiang, lead author of the study. The researchers used a new method that allowed them to estimate the temperature of the gas farther from Earth. This mean...
astrónomos, atmósfera, duendes, elfos, Espacio, investigadores, Juno, jupiter, NASA, nave espacial, Noticias, planetas, sprite

NASA detects “elves” and “goblins” in the atmosphere of Jupiter | Digital Trends Spanish

New results from NASA's Juno mission suggest the presence of "goblins" or "elves" of light in Jupiter's upper atmosphere. They would not actually be mythological creatures, but rather Transient Light Events (TLE), unpredictable flashes of bright light that are extremely brief. According to the space agency itself, this would be the first time that these phenomena have been observed on another planet. These "goblins", also named after a mischievous character in English folklore, are transient light events caused by lightning discharges from electrical storms. On Earth, they occur up to 60 miles above intense and high thunderstorms and are capable of illuminating a vast region of the sky, but only last for a few milliseconds. The "elves", meanwhile, owe their name to the acronym Elve...
Atmósfera de Venus, carl sagan, Espacio, Noticias, planetas, Venus, Venus (planeta)

Carl Sagan predicted the possibility of life on Venus in 1967 | Digital Trends Spanish

This Monday, September 14, an international group of scientists announced the discovery of phosphine (PH3) in the clouds of Venus. Scientists have pointed out that it is an astonishing and unexpected finding, which leads them to deepen their research on the possibilities of life in the atmosphere of the neighboring planet. The discovery has caused a stir in the international scientific community. However, more than fifty years ago, the famous astronomer and science popularizer Carl Sagan had already suggested the possibility of life in the atmosphere of Venus. Through your study Life in the clouds of Venus?, published the magazine Nature In 1967, together with Harold Morowitz, Sagan drew attention to the possibilities offered by the clouds of that planet for the disco...
Espacio, Exoplanetas, inteligencia artificial, Noticias, planetas

With artificial intelligence they discover 50 new planets | Digital Trends Spanish

A machine learning algorithm, a form of artificial intelligence, has confirmed the existence of fifty potential planets. The mechanism, developed by British scientists, analyzed a sample of potential planets captured by different telescopes, accurately confirming which were real and which were false positives. The findings justify the use of multiple validation techniques, including a machine learning algorithm, when statistically confirming future exoplanet discoveries, according to the study published in the monthly journal of the Royal Astronomical Society. False positives Many exoplanet studies search the large amounts of data provided by telescopes for signals from planets passing between the telescope and their star, a phenomenon better known as transit. However, ...
Agujeros negros, Blanet, Espacio, Noticias, planetas

Blanet: a new kind of planet near black holes | Digital Trends Spanish

Black holes always allow us to explore a little further and discover new things. Now a group of astronomers led by Keichi Wada of the University of Kagoshima in Japan, discovered that around these phenomena of the universe planets are formed that were baptized as Blanets. Blanets are structures that can form in the massive clouds of dust and gas around supermassive black holes. How are the Blanets formed? As indicated in the Astronomy site, these planets are born from "chen dust particles collide, they stick together to form larger clumps that sweep up more dust as they orbit the star. Eventually these groups grow large enough to become planets. " The Blanet orbits take millions of years to occur, as they must cover a distance of 100 trillion kilometers from the black hole itself...