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'Bathtub ring' hints at ancient Martian ocean

Caltech researchers have identified geological features on Mars that could point to the existence of a long-dried ocean that once covered a third of the Red Planet's surface. The research was conducted by former Caltech postdoctoral ...

Between eternal night and day, the faces of two cousins of Earth

An international team including the University of Bern (UNIBE) and the University of Geneva (UNIGE), members of the National Center of Competence in Research PlanetS, has succeeded in mapping the climate of rocky exoplanets ...

How plants could betray themselves across the galaxy

Here's a thought experiment. Imagine looking at Earth from a distant star system, armed with a powerful telescope capable of capturing its reflected light. Could you tell the planet was alive? The answer, remarkably, might ...

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Astrobiology
New Henrietta spectrograph to probe alien atmospheres
Space Exploration
Human sperm may get lost in space
Astrobiology
Developing optical vortex phase masks for the detection of habitable worlds
Astrobiology
All 5 fundamental units of life's genetic code were just discovered in an asteroid sample
Astrobiology
Moons orbiting wandering exoplanets could be habitable—with one catch
Space Exploration
A self-sufficient Mars garden? How cyanobacteria-based fertilizer could grow edible biomass
Astrobiology
The discovery of a buried delta on Mars could boost the search for life
Astrobiology
The best places to look for alien life: Scientists identify 45 Earth-like worlds to explore for a 'Project Hail Mary'
Astrobiology
Colliding dust and the sparks of creation: Carbon-coated grains provide new clue to life's early energy
Astrobiology
Experiment challenges hypothesis of cell-like membranes on Titan
Astrobiology
Ryugu asteroid samples contain all DNA and RNA building blocks, bolstering origin-of-life theories
Astrobiology
Life, but not as we know it
Astrobiology
JWST maps Europa's CO₂ beyond Tara Regio, hinting at subsurface exchange
Astronomy
Galactic islands of tranquility: 'Little red dots' may have brewed life's building blocks
Astrobiology
'Ionic liquids' could redefine the habitable zone
Astrobiology
Hydrogen atmosphere could keep exomoons habitable for billions of years
Astrobiology
Nearby red dwarf star hosts at least four planets—with one in the habitable zone
Astrobiology
How do we know what asteroids are made out of?
Astrobiology
Can we grow life on Mars? Experiments show potential in simulated extraterrestrial soil
Astronomy
The coldest 'stars' in the galaxy might actually be alien megastructures

Other news

Social Sciences
People with dark personality traits are naturally inclined towards leadership roles, finds new study
Mathematics
Mental math's shortcut—pupil dilation suggests people start solving before all numbers are in
Condensed Matter
Surprising link between metallicity and superconductivity uncovered in twisted trilayer graphene
Plants & Animals
How poison frogs built a chemical weapons system one evolutionary step at a time
Quantum Physics
Universal quantum protocol extracts maximum work without knowing a system's state in advance
Astronomy
DESI completes planned 3D map of the universe and continues exploring
Plants & Animals
Raven personalities shape survival as human pressure grows at the Dead Sea
Other
Saturday Citations: Neuroinflammaging treatment stuns; a hidden magma lake; decoding little red dots
Optics & Photonics
Bright quantum light emission achieved at room temperature in 2D semiconductors
Optics & Photonics
Flat optics move toward market with 300-per-second metalens production
Education
Prenatal opioid exposure in babies doesn't predict future classroom performance, study finds
Earth Sciences
Earth's tectonic elevator hauls ancient buried microbes back to the seafloor to revive and spread
Ecology
PFAS detected in dolphin milk may pass from mothers to calves
Earth Sciences
Taiwan landslide's hidden motion comes into focus as fiber optics track deep slip
Environment
Wildfires used to 'go to sleep' at night. Climate change is turning them into prime burning hours
Astronomy
A student-led experiment sets new limits in the search for axions
Soft Matter
Quantum-informed AI improves long-term turbulence forecasts while using far less memory
Earth Sciences
The Colorado River disappeared from the geological record for 5 million years: Scientists now know where it went
Plants & Animals
DNA cracks nutmeg's hidden past, revealing a South Moluccas origin and a prehuman journey north
Earth Sciences
Indonesia's fire crisis comes into focus as high-resolution satellite maps expose 5.62 million hectares affected

Introducing the Interplanetary Habitable Zone

Anyone familiar with the search for alien life will have heard of the "Goldilocks Zone" around a star. This is defined as the orbital band where the temperature is just right for liquid water to pool on a rocky planet's surface—a ...

Scientists successfully harvest chickpeas from 'moon dirt'

As the U.S. plans to return to the moon with the upcoming Artemis II mission, a question endures: What will future lunar explorers eat? According to new research from The University of Texas at Austin, the answer might be ...

Life forms can planet hop on asteroid debris—and survive

Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new Johns Hopkins University study finds. The work demonstrates that a certain hardy bacterium easily ...

How long do civilizations last?

It is one of the most famous questions in science, and it was asked, as legend has it, over lunch. Enrico Fermi, the physicist who helped build the first nuclear reactor and whose name graces a unit of length so small it ...

Would Earth still be habitable without us?

Here's a thought experiment that keeps planetary scientists awake at night. Strip every living thing from our planet, every bacterium, every blade of grass, every creature that has ever drawn breath and ask a simple but profound ...

Could Mars soil block Earth microbes? 'Water bears' offer a clue

Tardigrades, commonly known as water bears, may be better suited by a new name: Tardiguardians of the Galaxy. Unlike the fictional ragtag team of unenthusiastic heroes, the microscopic animals are providing real insight into ...