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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
Astronomy
DESI completes planned 3D map of the universe and continues exploring
Quantum Physics
Universal quantum protocol extracts maximum work without knowing a system's state in advance
Education
Prenatal opioid exposure in babies doesn't predict future classroom performance, study finds
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
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
Archaeology
First archaeological case of cleft lip identified in China reveals inclusive care in Qing dynasty community

How long could Earth microbes live on Mars?

Searching for past or present life on Mars is the sole driving force behind every mission we send to the red planet, from orbiters to landers to rovers. However, there remains a concern in the scientific community about Earth-based ...

Exomoons could reveal themselves through lunar eclipses

Our solar system hosts almost 900 known moons; more than 400 orbit the eight planets while the remaining orbit dwarf planets, asteroids, and Trans-Neptunian Objects (TNOs). Of these, only a handful are targets for astrobiology ...

The optical engineering required to photograph an Earth twin

More and more papers are coming out about the upcoming Habitable Worlds Observatory (HWO). As the telescope moves from theory to practice (and physical manifestation), various working groups are discovering, defining, and ...

A low-cost microscope to study living cells in zero gravity

As space agencies prepare for human missions to the moon and Mars, scientists need to understand how the absence of gravity affects living cells. Now, a team of researchers has built a rugged, affordable microscope that can ...

Early Mars was warm and wet not icy, suggests latest research

A recent study showed that Mars was warm and wet billions of years ago. The finding contrasts with another theory that this era was mainly cold and icy. The result has implications for the idea that life could have developed ...