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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 ...

New Henrietta spectrograph to probe alien atmospheres

Finding life beyond our solar system goes beyond measuring an exoplanet's size, as rocky, Earth-sized worlds might not have the conditions for life as we know it. While exoplanets can be directly imaged by blocking their ...

Human sperm may get lost in space

Having a baby in space may require a bit more direction, with new Adelaide University research revealing the navigational abilities of sperm are negatively impacted by a lack of gravity. Researchers at the University's Robinson ...

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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
Astrobiology
Red dwarf stars might starve alien plants of the 'quality' light they need to breathe
Astrobiology
Can we observe Earth-like exoplanets from our own planet?
Astrobiology
Scientists successfully harvest chickpeas from 'moon dirt'
Astronomy
Missing technosignatures? Turbulent plasma may blur ultra-narrow signals before they leave their home star systems
Astrobiology
Introducing the Interplanetary Habitable Zone
Astrobiology
Life forms can planet hop on asteroid debris—and survive
Astrobiology
How long do civilizations last?
Astrobiology
Would Earth still be habitable without us?
Astrobiology
What is an exoplanet? An astrophysicist explains why they are vital for finding alien life

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Astronomy
Astronomers find evidence for three subpopulations of merging black holes
Biotechnology
Hackers meet their match: New DNA encryption protects engineered cells from within
Optics & Photonics
High-resolution imaging captures cavity-induced density waves in a quantum gas
Polymers
Flux pathway reveals why mussel-like liquid phase separation can happen in seconds
Bio & Medicine
A nanoscale robotic cleaner can hunt, capture and remove bacteria
Other
Saturday Citations: Octopus behavior; children's nightmares; the fast effects of meditation
Cell & Microbiology
Microbial hockey: Scientists discover how bacteria rotate tiny pucks
Condensed Matter
'Poor man's Majoranas' can be used as quantum spin probes
Space Exploration
After Artemis II, NASA looks to SpaceX, Blue Origin for moon landings
Earth Sciences
Worsening ocean heat waves are 'supercharging' hurricane damage, study finds
General Physics
Search for dark matter intensifies as leading detector reaches milestone
Earth Sciences
Yellowstone's magma source may be closer than thought, reshaping hazard models
Earth Sciences
Glaciers rapidly declining, with extreme losses in 2025
Earth Sciences
Yellowstone's magma plumbing mainly shaped by tectonic forces—not deep mantle plume
Optics & Photonics
Scientists turn 'mess' into breakthrough: Chaotic design unlocks next-generation optical devices
Archaeology
Archaeological survey at Gnith reveals new details about pearl millet's westward expansion
Astronomy
Peculiar core-collapse supernova breaks the mold with a long, dim plateau
General Physics
Dual-frequency Paul trap shows potential for synthesizing antihydrogen outside of CERN
Earth Sciences
Back-to-back Amazon droughts trigger record forest stress
General Physics
Universal surface-growth law confirmed in two dimensions after 40 years

One day we might seed the universe with life. But should we?

Suppose humanity was faced with an extinction-level event. Not just high odds, but certain-sure. A nearby supernova will explode and irradiate all life, a black hole will engulf the Earth, a Mars-sized interstellar asteroid ...

Organic molecules of unprecedented size discovered on Mars

Scientists analyzing pulverized rock onboard NASA's Curiosity rover have found the largest organic compounds on the red planet to date. The finding, published Monday in the Proceedings of the National Academy of Sciences, ...

Using algorithms to help find life on icy ocean worlds

Scientists have long thought that our solar system's ocean worlds, such as Jupiter's moon Europa and Saturn's moon Enceladus, may harbor extraterrestrial life in the form of microbes. But detecting it could be a challenge ...