Thursday, September 23

vida extraterrestre

alienigenas, Espacio, Features, NASA, Sistema Solar, sonda espacial, vida extraterrestre, Voyager-1

Why would Voyager 1 be the key to finding aliens? | Digital Trends Spanish

On August 25, 2012, the Voyager 1 probe achieved a historic achievement: it left the heliopause behind and became the first to reach interstellar space. It was 19,000 million kilometers from the Sun and had exceeded the expectations of the engineers who made it and they watched hopefully as it took off from Cape Canaveral on September 5, 1977 (a day like today, 44 years ago). Today, this NASA probe is still operational. It was designed to study the limits of the solar system, including the Kuiper belt. But he also has another mission: trying to contact some extraterrestrial civilization. Anyone there? To this end, both Voyager 1 and Voyager 2 travel with golden records, known as Golden Records, which carry a set of images and sounds characteristic of Earth. The idea is that this serve...
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...
Espacio, Marte, Noticias, tierra, vida extraterrestre

Did life travel between Mars and Earth? Study supports theory | Digital Trends Spanish

Imagine microscopic life forms, like bacteria, transported through space and landing on another planet. Those that find the right conditions for their survival could begin to multiply again, causing life on the other side of the universe. The theory, called panspermia, supports the possibility that microbes can migrate between planets and distribute life in the universe. Long controversial, this assumption implies that bacteria would survive the long journey in outer space, resisting vacuum, temperature fluctuations and radiation. “Some think that life is very scarce and occurred only once in the Universe, while others think that it can occur on every planet that has the conditions. If panspermia is possible, life must exist more often than we thought, "says Akihiko Yamagishi, p...
Espacio, Marte, Noticias, vida extraterrestre

Was Mars a warm and humid planet? Study answers it | Digital Trends Spanish

The network of valleys that “heal” the surface of Mars would have been carved out by the water flowing under a glacial ice sheet and not by a river flow, as was originally thought. This was established by a study of the University of british columbia, which discards the hypothesis of a Ancient mars "Warm and humid", with rains, rivers and oceans. The investigation gains momentum as a NASA mission took off in late July 2020 with the scout vehicle. Perseverance, whose mission will be to obtain indications of life on Mars. The authors of the study, published in Nature Geoscience, used new techniques to examine thousands of Martian valleys, comparing them to subglacial channels in the Canadian Arctic archipelago. "For the past 40 years, since the valleys of Mars were discov...
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...