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What can early Earth teach us about the search for life?

Earth is the only life-supporting planet we know of, so it's tempting to use it as a standard in the search for life elsewhere. But the modern Earth can't serve as a basis for evaluating exoplanets and their potential to ...

Webb telescope probably didn't find life on an exoplanet—yet

Recent reports of NASA's James Webb Space Telescope finding signs of life on a distant planet understandably sparked excitement. A new study challenges this finding, but also outlines how the telescope might verify the presence ...

New findings point to an Earth-like environment on ancient Mars

A research team using the ChemCam instrument onboard NASA's Curiosity rover discovered higher-than-usual amounts of manganese in lakebed rocks within Gale Crater on Mars, which indicates that the sediments were formed in ...

Enceladus spills its guts through strike–slip motion

Over the course of its elliptical orbit, the moon Enceladus is squeezed unevenly by Saturn's gravitational pull and deforms from a spherical shape into a football shape and back again. This cyclic stress causes a phenomenon ...

Will we know if TRAPPIST-1e has life?

The search for extrasolar planets is currently undergoing a seismic shift. With the deployment of the Kepler Space Telescope and the Transiting Exoplanet Survey Satellite (TESS), scientists discovered thousands of exoplanets, ...

In search for alien life, purple may be the new green

From house plants and gardens to fields and forests, green is the color we most associate with surface life on Earth, where conditions favored the evolution of organisms that perform oxygen-producing photosynthesis using ...

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Astronomy
Gravitational waves may have made human life possible
Astrobiology
Cosmochemistry: Why study it? What can it teach us about finding life beyond Earth?
Astronomy
The mystery of fullerenes in space explained
Astrobiology
Life might be difficult to find on a single planet but may be obvious across many worlds
Space Exploration
New NASA software simulates science missions for observing terrestrial freshwater
Astrobiology
Signs of life detectable in single ice grain emitted from extraterrestrial moons, experimental setup shows
Astrobiology
Life's building blocks are surprisingly stable in Venus-like conditions: Study
Astrobiology
Planetary geophysics: What is it? What can it teach us about finding life beyond Earth?
Astrobiology
Could Earth life survive on a red dwarf planet?
Astrobiology
Protein fragments ID two new 'extremophile' microbes—and may help find alien life
Astrobiology
Unraveling the origins of life: Scientists discover 'cool' sugar acid formation in space
Astrobiology
The LIFE telescope passed its first test, detecting biosignatures on Earth
Astrobiology
NASA's search for life on Mars: A rocky road for rovers, a long slog for scientists, and a battle of the budget
Space Exploration
NASA unveils design for message heading to Jupiter's moon Europa
Astrobiology
How long will advanced civilizations try to communicate with us?
Astronomy
Interstellar signal linked to aliens was actually just a truck
Space Exploration
Study finds the West is best to spot UFOs
Astrobiology
The possibility of past life on Mars: Biomolecules may have originated from atmospheric formaldehyde
Astrobiology
Some intelligent civilizations could be trapped on their worlds
Space Exploration
Could tardigrades have colonized the moon?

Other news

Plants & Animals
Chimps shown to learn and improve tool-using skills even as adults
Astronomy
How NASA's Roman mission will hunt for primordial black holes
Biochemistry
New research confirms that Beethoven had lead poisoning—but it didn't kill him
General Physics
Advanced experimental setup expands the hunt for hidden dark matter particles
Astronomy
New accreting millisecond X-ray pulsar discovered
Planetary Sciences
Geologists reveal mysterious and diverse volcanism in lunar Apollo Basin, Chang'e-6 landing site
Ecology
Using algorithms to decode the complex phonetic alphabet of sperm whales
Nanophysics
Materials scientists reveal pathway for designing optical materials with specialized properties
Optics & Photonics
Research team discovers new property of light
Environment
Discharge of scrubber water into the Baltic Sea is responsible for hundreds of millions in costs
Nanophysics
Researchers 'unzip' 2D materials with lasers
Earth Sciences
Computer models show heat waves in north Pacific may be due to China reducing aerosols
Condensed Matter
New super-pure silicon chip opens path to powerful quantum computers
Cell & Microbiology
How a 'conductor' makes sense of chaos in early mouse embryos
Cell & Microbiology
Dogma-challenging telomere findings may offer new insights for cancer treatments
Cell & Microbiology
Decoding development: mRNA's role in embryo formation
Nanophysics
Bio-inspired materials' potential for efficient mass transfer boosted by a new twist on a century-old theory
Earth Sciences
Study identifies early warning signals for the end of the African humid period
Cell & Microbiology
Study sheds light on cancer cell 'tug-of-war'
Earth Sciences
Researchers show that slow-moving earthquakes are controlled by rock permeability

Cosmic dust could have helped get life going on Earth

Life on our planet appeared early in Earth's history. Surprisingly early, since in its early youth our planet didn't have much of the chemical ingredients necessary for life to evolve. Since prebiotic chemicals such as sugars ...

How we could snoop on extraterrestrial communications networks

The conditions for life throughout the universe are so plentiful that it seems reasonable to presume there must be extra-terrestrial civilizations in the galaxy. But if that's true, where are they? The Search for Extra-terrestrial ...

Subglacial microbial life on Earth and beyond

The search for life beyond Earth fascinates many and inspires big questions: Are we truly alone in the universe? Is our Earth unique? Is it possible that life beyond Earth may actually be far from little green aliens and ...

Saturn's largest moon most likely uninhabitable

A study led by Western astrobiologist Catherine Neish shows the subsurface ocean of Titan—the largest moon of Saturn—is most likely a non-habitable environment, meaning any hope of finding life in the icy world is dead ...