Last update:

Exoplanets could be hiding their atmospheres

Most of the exoplanets we've discovered orbit red dwarf stars. This isn't because red dwarfs are somehow special, simply that they are common. About 75% of the stars in the Milky Way are red dwarfs, so you would expect red ...

Plants could still grow well under alien skies

Photosynthesis changed Earth in powerful ways. When photosynthetic organisms appeared, it led to the Great Oxygenation Event. That allowed multicellular life to evolve and resulted in the ozone layer. Life could venture onto ...

Scientists scan TRAPPIST-1 for technosignatures

If you are going to look for intelligent life beyond Earth, there are few better candidates than the TRAPPIST-1 star system. It isn't a perfect choice. Red dwarf stars like TRAPPIST-1 are notorious for emitting flares and ...

Volcanoes may help reveal interior heat on Jupiter moon

By staring into the hellish landscape of Jupiter's moon Io—the most volcanically active location in the solar system—Cornell astronomers have been able to study a fundamental process in planetary formation and evolution: ...

Keeping mold out of future space stations

Mold can survive the harshest of environments, so to stop harmful spores from growing on future space stations, a new study suggests a novel way to prevent its spread.

Why are we so fascinated with aliens?

Robert Smith is convinced the aliens have won. "The invasion has happened—it's all over," says the University of Alberta space historian who teaches a course on the history of extraterrestrials.

Astrobiologist explores likelihood of life originating on Earth

Florida Tech astrobiologist Manasvi Lingam has asked life's biggest questions from a young age. Though he can't recall his exact queries, he says his interests were perfectly consistent with those of other children: dinosaurs ...

Exoplanets may contain more water than previously thought

We know that the Earth has an iron core surrounded by a mantle of silicate bedrock and water (oceans) on its surface. Science has used this simple planet model until today for investigating exoplanets—planets that orbit ...

More news

Astrobiology
Scientists find oceans of water on Mars. It's just too deep to tap.
Astrobiology
Study reports dim odds for finding alien civilizations
Astrobiology
New study suggests that our galaxy is crowded or empty—both are equally terrifying
Astrobiology
Scientists discuss why we might not spot solar panel technosignatures
Astrobiology
Study suggests cloud-to-ground lightning strikes may have generated building blocks for life on Earth
Astrobiology
The discovery of a new Earth-like planet could shed further light on what makes a planet habitable
Astrobiology
Has NASA found evidence of ancient life of Mars? An expert examines the latest discovery
Astrobiology
Perseverance rover discovers rock with potential signs of ancient life
Astrobiology
The ultraviolet habitable zone may set a time limit on the formation of life
Astrobiology
Effects of stellar magnetism could expand criteria for exoplanet habitability
Astrobiology
Signatures of life could survive near surfaces of the moons Enceladus and Europa, NASA experiment suggests
Astrobiology
Scientists unveil cosmic fingerprints of sulfur rings
Astrobiology
Increasing the understanding of early life on Earth could shape the search for life on other planets
Astrobiology
Astronomers find surprising ice world in the habitable zone with JWST data
Astrobiology
Detecting intelligent life that's light years away: Greenhouse gases could signal alien activity
Astrobiology
Hydrothermal vents on seafloors of 'ocean worlds' could support life, new study says
Astrobiology
Watery planets orbiting dead stars may be good candidates for studying life—if they can survive long enough
Astrobiology
New research finds lake under Mars ice cap unlikely
Astronomy
New instrument to search for signs of life on other planets
Astrobiology
What impact does ozone have on an exoplanet?

Other news

General Physics
New results from the CMS experiment put W boson mass mystery to rest
Condensed Matter
Researchers observe an antiferromagnetic diode effect in even-layered MnBi₂Te₄
Archaeology
Scientists explore origins of horseback riding through human skeletons
Quantum Physics
Even the heaviest particles experience the usual quantum weirdness, new experiment shows
Plants & Animals
'Pirate birds' force other seabirds to regurgitate fish meals. Their thieving ways could spread lethal avian flu
Cell & Microbiology
New method developed to relocate misplaced proteins in cells
Biotechnology
New biosensor illuminates physiological signals in living animals
Earth Sciences
New tool to help decision makers navigate possible futures of the Colorado River
Environment
Many people in the Pacific lack access to adequate toilets—and climate change makes things worse
Other
Saturday Citations: Football metaphors in physics; vets treat adorable baby rhino's broken leg
General Physics
Physicist finds tailwind has minimal impact on uphill cycling speed in Everesting challenges
General Physics
Scientists propose a new method to search for dark matter using LIGO
Ecology
Mysterious Pacific Ocean sounds identified as a type of whale—a new AI app helps track them
Plants & Animals
Black garden ants modify the structure of their nests to mitigate fungal infection spread
Astronomy
Observers detect intraday variability of blazar 1ES 1426+42.8
Environment
A possible explanation for the 'missing plastic problem': New detection technique finds microplastics in coral skeletons
Cell & Microbiology
Genome sequence analysis identifies new driver of antimicrobial resistance
Biochemistry
AI tools help uncover enzyme mechanisms for lasso peptides
Nanophysics
Light momentum turns pure silicon from an indirect to a direct bandgap semiconductor
Molecular & Computational biology
New data science tool greatly speeds up molecular analysis of our environment

Exploring extremes in the search for life on Mars

People might assume the search for life on Mars ended when NASA's first rovers sent back images of the planet's barren, inhospitable surface. However, as scientists broaden their understanding of the extreme conditions in ...

Scientists help unravel life's cosmic beginnings

Knowledge about the early forms of life in the universe that may have led to the development of life on Earth remains largely unknown. However, a group of scientists at the University of Hawaiʻi at Mānoa are attempting ...

Tracing the origins of organic matter in Martian sediments

Although Mars presents a barren, dusty landscape with no signs of life so far, its geological features such as deltas, lakebeds, and river valleys strongly suggest a past where water once flowed abundantly on its surface. ...

What deadly Venus can tell us about life on other worlds

Even though Venus and Earth are so-called sister planets, they're as different as heaven and hell. Earth is a natural paradise where life has persevered under its azure skies despite multiple mass extinctions. On the other ...

Astronomers are on the hunt for Dyson spheres

There's something poetic about humanity's attempt to detect other civilizations somewhere in the Milky Way's expanse. There's also something futile about it. But we're not going to stop. There's little doubt about that.

Looking for life on Enceladus: What questions should we ask?

Does life exist beyond Earth? One of the most compelling places to consider this possibility is Enceladus, a moon of Saturn with a liquid water ocean encased in a frozen shell. There, plumes of water spray from ice fractures ...