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Mars may have been habitable much more recently than thought

Evidence suggests Mars could very well have been teeming with life billions of years ago. Now cold, dry, and stripped of what was once a potentially protective magnetic field, the red planet is a kind of forensic scene for ...

Could life at TRAPPIST-1 survive the star's superflares?

The TRAPPIST-1 system is a science-fiction writer's dream. Seven Earth-sized worlds orbit a red dwarf star just 40 light-years away. Three of those worlds are within the habitable zone of the star. The system spans a distance ...

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Astrobiology
Investigating the statistical likelihood of triple star systems hosting exoplanets
Astrobiology
Another building block of life can handle Venus' sulfuric acid
Astrobiology
Can the 'hard steps' in the evolutionary history of human intelligence be recast with geological thresholds?
Astronomy
How a nearby supernova left its mark on Earth life
Astrobiology
How sweet is the Milky Way? Astrochemist is helping find out
Astrobiology
Potential indicators of life on other planets can be created in a lab
Astrobiology
Those aren't Dyson spheres, they're HotDOGs
Astrobiology
Advanced civilizations will overheat their planets within 1,000 years, researchers suggest
Astrobiology
Could stars hotter than the sun still support life?
Astrobiology
Life might thrive on the surface of Earth for an extra billion years
Astrobiology
Exoplanets could be hiding their atmospheres
Astrobiology
Plants could still grow well under alien skies
Astrobiology
Could interstellar quantum communications involve Earth or solve the Fermi paradox?
Astrobiology
Volcanoes may help reveal interior heat on Jupiter moon
Astrobiology
Detailed model suggests organic matter on Mars was formed from atmospheric formaldehyde
Astrobiology
Scientists scan TRAPPIST-1 for technosignatures
Astrobiology
Projecting what Earth will look like 1,000 years from now could assist in search for advanced civilizations
Space Exploration
Keeping mold out of future space stations
Astrobiology
Could comets have delivered the building blocks of life to ocean worlds like Europa, Enceladus and Titan?
Astrobiology
Why are we so fascinated with aliens?

Other news

Planetary Sciences
Chinese rover finds evidence of ancient Martian ocean
Evolution
Insect-killing fungi find unexpected harmony in war
Astronomy
Astronomers discover a new repeating fast radio burst
Nanophysics
Quasiperiodicity changes the ground-state properties of 1D narrow-band moiré systems, study demonstrates
Environment
Plastics pollution worsens the impacts of all planetary boundaries, new study says
Earth Sciences
Advances in plate tectonics research provide a new view of deep Earth's carbon emissions
Ecology
Amnesia-causing diatoms found in Luzon shellfish farms
Plants & Animals
Chernobyl frogs exposed to radiation show no signs of accelerated aging or increased stress hormone levels
Nanophysics
Physicists reveal how layers and twists impact graphene's optical conductivity
General Physics
New giant particle collider 'right option for science': Next CERN chief
Evolution
Symmetry in biology: A look into how bees actively organize nests in mirroring patterns
Biotechnology
A new GPS system for microorganisms could enhance forensic investigations
General Physics
Fluids thicken at the speed of light: A new theory extends Einstein's relativity to real fluids
Plants & Animals
Computer model uncovers plant thickness growth mechanisms
Archaeology
DNA evidence rewrites histories for people buried in volcanic eruption in ancient Pompeii
General Physics
Can unknown physics be seen in interactions between Higgs bosons?
Astronomy
Astrophysicists use echoes of light to illuminate black holes
Condensed Matter
Can the noble metals become superconductors?
Evolution
Evolutionary anthropologist presents hypothesis about why humans are dominating the world over other animals
Plants & Animals
Defense or growth: Study finds trade-off in how plants allocate resources

The improbable origins of life on Earth

We do not yet know how, where, or why life first appeared on our planet. Part of the difficulty is that "life" has no strict, universally agreed-upon definition.

Exploring the galactic habitable zone

Our planet sits in the habitable zone of our sun, the special place where water can be liquid on the surface of a world. But that's not the only thing special about us: we also sit in the galactic habitable zone, the region ...

Early life was radically different than today

All modern life shares a robust, hardy, efficient system of intertwined chemicals that propagate themselves. This system must have emerged from a simpler, less efficient, more delicate one. But what was that system, and why ...

The implications of 'Oumuamua on the panspermia theory

On October 19, 2017, astronomers with the Pan-STARRS survey detected an interstellar object (ISO) passing through our solar system for the first time. The object, known as 1I/2017 U1 'Oumuamua, stimulated significant scientific ...