Tuesday, July 27

Sistema Solar

Espacio, luz de las estrellas, Noticias, polvo de estrellas, Sistema Solar, sol, tierra, universo

The light of the stars, key in the origin of the Earth | Digital Trends Spanish

In 2011, scientists discovered that solar wind samples brought to Earth by the Genesis mission showed that oxygen isotopes in the Sun differ from those found on our planet, the Moon, and the other planets and satellites in the solar system. According to experts, at the beginning of the history of the solar system, the material that would later become planets received a strong dose of ultraviolet light, this could explain the difference. At that time, when wondering where it came from, two theories emerged. One of them pointed out that the ultraviolet light came from our then young sun, or from a nearby large star in the so-called solar stellar nursery. Now researchers at Washington University in St. Louis have determined that the second hypothesis was most likely. "We knew we were born...
Espacio, jupiter, Noticias, nubes, organismos, Sistema Solar, Venus, vida

According to study, life could exist in the clouds of Jupiter | Digital Trends Spanish

An international team of scientists published a study in Nature Astrology on the activity of the water in the clouds of Venus. As a main conclusion, the research indicates that the effective concentration of water molecules in the clouds of Venus is too small to support life like that known on Earth. "We have not found that the water level is slightly below what the most extreme organisms need, but that it is 100 times lower than it would be necessary," explained John E. Hallsworth, leader of the study. The surprise is on the account of Jupiter, who showed that its clouds have a high enough water concentration and a suitable temperature for, in theory, Extremophilic organisms to survive. "I am not suggesting that there is microbial life on Jupiter because it would have to have other req...
Agujeros negros, Espacio, galaxia, Halloween, inquietantes, misterios, NASA, Noticias, ruidos, Sistema Solar, sonidos, soundcloud, Terror, universo, Vía Láctea

NASA creates list of the most disturbing sounds from space | Digital Trends Spanish

The world prepares for a new Halloween celebration. This will be a different version, yes, due to the worrying pandemic that affects the planet. For this reason, the way of celebrating has changed and we may have to spend more time at home during this traditional celebration. The good news is that the panoramas are not going to be missing and they may come from the most unusual places. From space, for example. The National Aeronautics and Space Administration (NASA) has launched in Soundcloud a special list that brings together the scariest sounds obtained from space. As reported in a release, this list "is full of new moans and whistles from our universe that would scare even the most macabre creatures." The compilation includes sounds derived from the tremors on Mars, detected ...
asteroide, astrónomos, Espacio, galaxia, hubble, jupiter, Marte, materiales, metales, Noticias, planeta, Sistema Solar, tierra

This asteroid “is worth” much more than the entire world economy | Digital Trends Spanish

Psyche is a strange asteroid that is 370 million kilometers from Earth. It is classified as one of the most massive in the main asteroid belt of the Solar System, which orbits between Mars and Jupiter. It is about 226 kilometers wide and unlike most asteroids, which are icy and rocky, Psyche appears to be metallic. Being so dense and metallic, it is thought that Psyche could be the leftover core of a planet that failed during its formation, which is known as a protoplanet. Thanks to observations made using the Hubble Space Telescope, astronomers have been able to get a clearer image of the asteroid. Hubble. "We have seen meteorites that are mostly metal, but Psyche could be unique in that it could be an asteroid that is entirely made of iron and nickel," explains researcher Tracy ...
carl sagan, Espacio, estrellas, Exoplanetas, investigacion, linea de vision, NASA, Noticias, observacion, órbita, satélite, Sistema Solar, tierra

Some exoplanets may be watching us | Digital Trends Spanish

It is possible that our planet is currently being observed from billions of kilometers away. Is it a disturbing idea? A group of astronomers has pointed out that some exoplanets, that is to say planets beyond our Solar System, have a direct line of sight to observe the biological properties of the Earth from very far away. Astronomers from the Carl Sagan Institute of Cornell and Lehigh University have identified 1,004 stars similar to our Sun that could contain Earth-like planets that would be able to detect the chemical traces of life on our planet. The article was already published in the Monthly Bulletin of the Royal Astronomical Society and is titled "What Stars Can See Earth as a Transiting Exoplanet?" "Let's reverse the point of view of other stars and ask from what point of...
Enanas Blancas, Espacio, Exoplanetas, Noticias, Sistema Solar, sol

They discover the first planet that survived the death of its sun | Digital Trends Spanish

A consortium of astronomers discovered the first giant exoplanet that was able to survive the death of its sun and continue to orbit the white dwarf that its parent star became. The finding from the Association of Research Universities in Astronomy (Aura) shows that it is possible for planets the size of Jupiter to survive the disappearance of their star and settle into close orbits around the remaining stele, close to the habitable zone. The research also predicts what could happen in the Solar System, when the Sun ages and becomes a white dwarf. Astronomers used the Gemini International Observatory, a program of NOIRLab, among other telescopes in the world and in space, to find and characterize a giant planet, 13.8 times larger than Jupiter, orbiting a white dwarf star. This is t...
agua, Espacio, Noticias, Sistema Solar, Tendencias, tierra

They clarify the mystery about the origin of the Earth’s water | Digital Trends Spanish

Earth's oceans could have been formed directly from "stellar matter" that coalesced in the early Solar System, rather than through meteorites and comets that collided with the forming planet. This is suggested by a study published in the journal Science, which challenges the long-held idea that most of the water on Earth came through other celestial bodies. According to the researchers, meteorites that could have formed in the inner Solar System contain more hydrogen than previously thought. Hydrogen is one of the two essential ingredients in water, in addition to oxygen. If Earth had formed from these materials, it would have had enough hydrogen and oxygen to fill even three oceans today, according to the researchers. "The Earth could have been humid from the beginning...
Espacio, Noticias, Sistema Solar, sol, universidad de harvard

Did the Sun have a twin? The theory about the origin of life | Digital Trends Spanish

A new published theory suggests that the Sun may have had a twin of similar mass at some point in history, as part of a binary system in which two stars orbit each other, according to scientists from the Harvard University. According to the researchers, the collection of stars formed next to the Sun from the same dense cloud of molecular gas could explain the Oort Cloud, as it is possible to see it today. The Oort Cloud is on the edge of the Solar System and contains billions of cold objects. Popular theory associates its formation with the debris that remained during the formation of the Solar System, where objects were scattered over great distances. However, a binary system could be the missing piece to the puzzle. According to researcher Amir Siraj, it should come as no surpr...
Backyard Worlds: Planet 9, Espacio, Noticias, Sistema Solar

They identify for the first time the cosmic neighborhood of the Sun | Digital Trends Spanish

How complete is the census of the Sun's closest neighbors? We had never met some of your closest neighbors… until now. Backyard Worlds: Planet 9, a NASA-funded citizen science project, announced the discovery of 95 cold brown dwarfs in the vicinity of the Sun, many a few dozen light-years away. These are objects larger than planets, but lighter than stars. Because they are outside the Solar System, they do not experience the heat of our main star, but they are in a region that astronomers consider the Sun's "cosmic neighborhood". The collection represents some of the coldest known examples of these objects, which have been identified by a team of data research volunteers working at the National Optical-Infrared Astronomy Research Laboratory (NOIRLab) in the United Sta...
Espacio, Exoplanetas, Noticias, Sistema Solar, vida extraterrestre

They calculate the maximum number of habitable planets per system | Digital Trends Spanish

Seven is the maximum number of celestial bodies similar to Earth, capable of harboring life, that could exist in other planetary systems, in the absence of a gas giant like Jupiter. This is the conclusion of a University of California Riverside study, led by astrobiologist Stephen Kane and published in the Astronomical Journal. The search for life in outer space generally focuses on what scientists call the “habitable zone,” as it is called the area around a star in which a planet could have oceans of liquid water, a key condition for life. as we know it. Kane had studied a nearby solar system called Trappist-1, which has three Earth-like planets in its habitable zone. Comparison of the Solar System with the Trappist-1 System University of California Riverside "This mad...