Astrobiology

Carl Sagan extends his palms to the universe, an attempt at creating an image using artificial intelligence.

Carl Sagan's scientific legacy goes far beyond the Cosmos series

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From the revolutionary astronomical achievements to the social activism and inspiration for generations of scientists - how Carl Sagan shaped science and our understanding of the universe.
This artist rendering shows NASA's Europa Clipper spacecraft in orbit around Jupiter. Credit: NASA/JPL-Caltech

Europa Clipper spacecraft: Large solar wings power NASA's largest planetary spacecraft ever

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Aliens abduct a human into their flying saucer. Illustration: depositphotos.com

Belief in alien visits to Earth is getting out of control - here's why it's so dangerous 

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In an article accepted for publication in the Proceedings of the International Astronomical Union, Tony Milligan, a researcher in the philosophy of ethics, King's College London, argues that the belief in alien visitation is no longer a whim, but a widespread social problem
UV radiation from interstellar emissions can erode the atmospheres of planets. Credit: University of Hawaii at Manoa

When Red Dwarfs Attack: High-energy UV radiation from stellar emissions can be life-threatening 

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Groundbreaking research has revealed that red dwarfs can produce stellar emissions that carry much higher levels of ultraviolet (UV) radiation than previously believed, casting doubt on the ability of planets

Venus' evil twin or Earth's lost brother? The intriguing case of Gliese 12 b

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The discovery of Gliese 12 b, a Venus-like planet just 40 light-years away, offers new opportunities to understand the conditions that support life in the universe. "Evil Twin" it gets a lot more
The Cambrian Bang. Illustration: depositphotos.com

New findings regarding the connection between the increase of oxygen in the atmosphere and the development of complex life

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Hebrew University researchers have revealed new findings regarding the connection between the increase in oxygen in the atmosphere and oceans on Earth, and the development of complex life. The study indicates that the rise of oxygen occurred after the development of life
Photograph of the Earth and the Moon by the Galileo spacecraft. Photo: NASA

Carl Sagan discovered life on Earth 30 years ago - how his experiment helps us look for alien species today

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It's been 30 years since a group of scientists led by Carl Sagan found evidence of life on Earth using data from instruments aboard NASA's Galileo space probe and only a combination of instruments ignoring
A panoramic image of the environment of the Red Perseverance SUV. Photo: NASA / JPL-Caltech

NASA has released high-quality video and audio from Mars for the first time

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This is not a simulation. The Perseverance robotic all-terrain vehicle and the crane that lowered it photographed each other and the Martian soil in a way that made it possible to document the landing as if it were a landing on Earth. NASA: We wanted to
We imagine the aliens as distorted human-like creatures. Not a chance. Illustration: shutterstock

Do invisible aliens exist among us? An astrobiologist explains

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Artistic representations of planets outside the solar system that could support life as we know it. Figure: Habitable Planets Laboratory, University of Puerto Rico, Arecibo.

How many Earth-like planets orbit Sun-like stars in the habitable zone?

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How do we really know that there weren't previous industrial civilizations on Earth that rose and fell long before humans appeared? That's the question posed in a scientific thought experiment by astrophysicist Adam Frank of the University of Rochester. Image: University of Rochester / Michael Osadciw

How do we know that humanity established the first intelligent civilization on Earth?

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Simulation of the Curiosity rover firing a laser beam at a rock on Mars. The laser vaporizes part of the rock, and the rover examines the radiation spectrum of the resulting plasma, in order to determine the chemical composition of the rock. Source: NASA / JPL.

For the first time, boron was found on Mars, a discovery that strengthens the possibility that life existed on it in the past

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Simulation of extrasolar planets. Source: NASA

Planets for the most part - there is no life

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red dwarf From Wikipedia

Extraterrestrial life: similar to us and closer than we thought

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alien planet Life may be extinct before a stake is driven in. Illustration: shutterstock

Why are the aliens silent? Because they are dead!

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The icy and mysterious surface of 'Europa' as photographed by the spacecraft 'Galileo'

An astrobiologist suggests possible types of landing sites that would allow the detection of signs of life if these exist in the subsurface oceans

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A section of the very large array - a concentration of radio telescopes used, among other things, to search for radio signals from aliens. Photo: shutterstock

Will aliens interpret the first message from humanity to them as a cyber attack?

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From the movie Encounters of the Third Kind - the moment of the encounter with the aliens PR photo

On guarding life in other worlds / Erin Biva

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Meteorites contain a large amount of bases that serve as the building blocks of DMA. Artist's illustration NASA's Goddard Space Flight Center/Chris Smith

DNA building blocks can form in space

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Prof. Barry Bloomberg. Photo: NASA

Nobel laureate Barry Bloomberg has passed away

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The oldest modern human teeth discovered in Kesem Cave. Photo: Israel Hershkovitz, Tel Aviv University

Why did the ancient man from the beginning of the eye cause a storm on the Internet?

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The six-planet model of Gliese 581

Astrobiology - Black plants and twilight zones / Bryn Nelson

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Bacteria grown on arsenic. Photo: Judy Schweitzer Blum

NASA's Discovery of an Arsenic-Using Bacteria: A Catalyst for a Theological Debate

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Bacteria grown on arsenic. Photo: Judy Schweitzer Blum

Have aliens been discovered on Earth?

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Felicia Wolf Simon and one of her colleagues near Mono Lake in California

NASA: We didn't discover aliens but we did discover bacteria that replaced phosphorus with arsenic

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Does the atmosphere of Venus allow the existence of life? (Photo: NASA)

Astrobiology: Could there be life in space?

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The orbit of Themis in the asteroid belt, Themis is one of the largest asteroids in the asteroid belt. Illustration: Josh Emery, University of Tennessee in Knoxville

Researchers have found water and organic matter on the asteroid Themis

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

NASA-funded research reveals new insights into the evolution of life

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The building blocks of life were discovered in space - now it is final

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Looking for extraterrestrials in infrared

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Could it be that volcanoes provided the sparks for the first life?

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

A "little bang" causes the formation of the solar system

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