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Scientists revise astrobiology guidelines, significantly reducing the estimated number of planets where signs of extraterrestrial life might be found

January 09, 2020 -

Scientists revise astrobiology guidelines, significantly reducing the estimated number of planets where signs of extraterrestrial life might be found

Thursday, January 09, 2020 by: Michael Alexander

Tags: aliens, breakthrough, cosmic, discoveries, exoplanets, extraterrestrial life, goodscience, habitable zone, planets, research, Space

Scientists may have to update their estimates regarding the number of planets capable of supporting ...

Not just little green men: Alien life may also come in the form of viruses – will our astronauts be prepared?

February 20, 2018 - astrobiology would eventually come together to gain a better understanding of viruses in a cosmic environment.

Our technology isn't there quite yet, however. We don't have the tools to take virus research to an interstellar scale. Though we may in time. According to, scientists are in the process of developing methods for identifying ancient Earth viruses through chemical signatures. Proven successful, then we could soon be looking out for viruses ...

Life on the ice: Extraterrestrial life on ice worlds could look like Hawaiian underwater creatures

February 18, 2020 - astrobiology guidelines, significantly reducing the estimated number of planets where signs of extraterrestrial life might be found.)

Unlike most other underwater volcanoes, Lo’ihi seamount is relatively isolated from any larger faults or ridges. This isolation, according to experts, means that it does not get as hot as volcanoes located in plate-edge regions – making it much closer to the possible temperatures of the hydrothermal vents on Enceladus’ seafloor, ...

From the sea to the stars: Scientists study octopuses to understand intelligent life on other planets

February 23, 2020 - astrobiology, during the presentation.

The results of Sivitilli's study found that the decision-making mechanism is bottom-up rather than top-down, or radiating from the arms up to the brain, instead of the other way around like with many other animals.

The sensors in an octopus's arm contains tens of thousands of chemical and mechanical receptors. For comparison, the human fingertip merely contains several hundred mechanical receptors. When the octopus ...

NASA says that aliens live on Venus, but they’re only microbes

April 26, 2018 - astrobiology exploration," Mogul believes.

NASA is also engaged in talks with its Russian counterpart ROSCOSMOS to join the Venera-D mission in 2026. If negotiations are successful, NASA could contribute a surface station and an aerial platform like VAMP to the Venus mission.

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NASA scientists quietly announce that Enceladus, a Saturn moon, can support life

April 27, 2017 - astrobiology researcher at the University of Westminster.

The answer to whether or not life truly does exist on Enceladus won't be confirmed anytime soon. Cassini will end its 20-year mission on September 15 this year by crashing into Saturn. Nell Greenfieldboyce of has stated that the spacecraft “doesn't have the instruments needed to look for life itself” on Enceladus. Currently, it is unknown if any other spacecraft will be sent to Saturn's moon. However, ...

Microbe found in Ethiopian volcano’s strongly acidic saltwater hints microorganisms could have survived in similar conditions on Early Mars

December 28, 2019 -

The details of the the research are published in the journal Scientific Reports.

Home to the Dallol hydrothermal field, the Danakil Depression is one of the most beautiful places on the planet, with aerial images often showing a seemingly endless stretch of  desert characterized by bright colors ranging from brilliant yellows and reds to saturated greens and blues and mottled with patches of sulfur springs, salt deposits and craters.

It is also one of the most ...

Intelligence means technology: SETI expert says they’re actually searching for “technosignatures”

February 06, 2018 -

According to Jill Tarter, a world-renowned astrophysicist who served as a former director of the Center for the Search for Extraterrestrial Intelligence (SETI) Research, it's pretty much high time for the term "SETI" to be changed or rebranded. In her view, it's a misnomer and could ultimately end up leading people down the wrong path on the search for alien life outside of the planet Earth.

During a recently concluded meeting of the National Academy of Sciences' Committee ...

No wonder mold is so hard to kill: Study findings reveal that it can withstand space radiation doses that would even kill humans

February 03, 2020 -

It turns out that one of the most common types of mold on the ISS, Aspergillus, can survive X-ray exposure at 200 times the dose that can kill a human being. This is according to Marta Cortesao, microbiologist at the German Aerospace Center, who presented her findings at the 2019 Astrobiology Science Conference. These and other kinds of mold spores are already known to be able to withstand extreme conditions, such as very low or very high temperatures, ultraviolet ...

Aliens with green or grey skin? No, researchers say extraterrestrial life may look like pasta

December 04, 2019 -

In a study published in the journal Astrobiology, the researchers believe that if humanity really wants to find extraterrestrial life, they need to look at pasta-shaped rock formations, which may have been formed by microbes.

Bruce Fouke, a geobiologist and one of the authors of the study, remarked: "If we go to another planet with a rover, we would love to see living microbes or we'd love to see little green women and men in spacecraft. But the reality is ...

NASA has pictures of Martian “mushrooms” indicating proof of life, says controversial new research

August 10, 2019 -

The researchers pointed out features in 15 images that resembled algae, lichens, and mushrooms on Earth. They added that the shapes were impossible to replicate by non-living forces like geological movements.

“There are no geological or other abiogenic forces on Earth which can produce sedimentary structures, by the hundreds, which have mushroom shapes, stems, stalks, and shed what looks like spores on the surrounding surface,” claimed Pondicherry University researcher ...

Scientist believes advanced alien civilization inhabited our solar system long before humans came along

June 26, 2018 - astrobiology is whether life exists (or existed) in the solar system. However, a factor that is often overlooked is whether intelligent life thrived billions, if not trillions, of years ago. We often greatly exaggerate our intelligence; ready to assume that our capacity for certain skills make us a far superior species. Yet, Wright cautions that alien life could have far exceeded even our most intellectually superior representative. Further, they would have left a distinctive ...

Astronauts train for Mars mission by living in inflatable greenhouses in the Dhofar desert

February 27, 2018 - astrobiology, life sciences, and more.

The simulation project is said to be the first to rely on a combination of drones, robotic rovers, and an inflatable greenhouse in order to carry out its experiments. The base of operations is a 2.4-ton inflated habitat that's surrounded by a number of shipping containers converted into laboratories and crew quarters. If the tests prove to be successful, there is a chance that the National Aeronautics and Space Administration ...

Beyond oxygen: Looking for possible alien life that may not require an atmosphere with oxygen

February 03, 2018 - astrobiology. We want to make more people aware that there’s more to looking for life than looking for oxygen,” he remarked.

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NASA: At least 300 million exoplanets in the Milky Way may be habitable

November 12, 2020 -

The estimate is based on a conservative assumption that seven percent of the sun-like stars in the galaxy foster conditions that are hospitable to life. The researchers said that there might be more such stars and therefore more habitable planets.

The findings of the study are slated to be published in the Astronomical Journal.Looking for habitable exoplanets in the Milky Way

The study’s findings were based on data gathered by the Kepler space telescope. Although ...

Researchers discover 45 potentially habitable exoplanets

November 09, 2020 -

With several active and planned sky surveys, the researchers said that their findings could be used to refine exoplanet searches.45 Exoplanets possess Earth-like characteristics

Detecting habitable exoplanets is not easy; scientists can’t just send a probe to distant stars using current spacefaring technologies. For instance, the National Aeronautics and Space Administration’s (NASA) Juno probe reaches speeds of up to 165,000 miles per hour. At those speeds, Juno ...

Scientists identify 24 exoplanets that may be more habitable than Earth

October 07, 2020 -

Exoplanets, celestial bodies that orbit a star other than the sun, are found everywhere in the cosmos. Some of them are located in the orbital region around a star, called the liquid water habitable zone, where planets could have stable atmospheres to support liquid water.

The researchers surveyed around 4,500 such exoplanets that are registered in the Kepler Object of Interest Exoplanet Archive, choosing those that passed their criteria for habitability. Though none ...

Large reservoirs of “fire ice” beneath the ocean can potentially trigger devastating disasters if released

February 28, 2020 -

Dubbed “fire ice,” these deposits, once released, can trigger large-scale natural catastrophes such as tsunamis and landslides – and scientists and experts currently have no idea how much of these fire ice deposits exist.

According to Ann Cook, an associate professor in the School of Earth Sciences at The Ohio State University, the lack of information about this phenomenon is due to the fact that frozen methane takes many more forms than what was previously thought....

Looking at the lunar surface: Harvard scientist believes the moon holds clues about extraterrestrial life

September 06, 2020 - astrobiology offers a twist on this notion,” he said. “Here’s hoping that the moon will inform our civilization that we are not alone and that someone else is waiting for us out there.”

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Study: Ancient microbes could survive hundreds of millions of years below the surface of Mars while in “suspended animation”

November 08, 2022 -

The Oct. 25 study published in Astrobiology stated that the bacterium Deinococcus radiodurans could survive 280 million years on Mars, almost 300 times longer than earlier presumed, if it was buried 32 feet underneath the surface of the Red Planet. D. radiodurans gained the monikers "Conan the Bacterium" and "superhero of the bacterial world" because of its toughness. The Guinness Book of Records awarded it the title of "world's toughest known bacterium" due to its ...

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