https://phys.org/space-news/astrobiology/ en-us Astrobiology news stories about origin and evolution of life in the Universe You may have heard the phrase "we are made of star-stuff." This statement by the astronomer Carl Sagan refers to the fact that elements heavier than hydrogen and helium were forged in the centers of the first stars. But how does this star-stuff evolve into the chemistry of rocks, plants and people? https://phys.org/news/2026-08-radio-telescopes-scientists-molecules-space.html Astronomy Sun, 16 Aug 2026 18:40:01 EDT news705925133 Detecting water where none remains today: Neutron and X-ray tomography make it possible. In an international study conducted with the participation of the Paul Scherrer Institute PSI, researchers have brought to light macroscopic hydrogen-rich regions inside a Martian meteorite. The findings provide evidence for early water-rock interactions on Mars. https://phys.org/news/2026-08-dry-meteorite-mars.html Astrobiology Thu, 13 Aug 2026 15:00:01 EDT news705841861 It's common to see images of astronauts on the International Space Station exercising, running on special treadmills and pedaling cycles designed for tight quarters. https://phys.org/news/2026-08-space-doesnt-affect-strength-heart.html Space Exploration Wed, 12 Aug 2026 18:20:03 EDT news705759301 The habitable zone concept is useful for understanding which worlds might, possibly, maybe, be habitable. It highlights exoplanets at the right distances from their stars for liquid water to potentially exist on their surfaces. But that alone can't determine habitability. https://phys.org/news/2026-08-mission-evolution-exoplanet-atmospheres.html Astrobiology Tue, 11 Aug 2026 21:00:01 EDT news705685681 For decades, astronomers have assumed that the Martian surface froze solid around 3 billion years ago and has stayed that way ever since. If this were really the case, any liquid water would have long since either been locked away underground or lost to space. https://phys.org/news/2026-08-mars-liquid-thought.html Astrobiology Mon, 10 Aug 2026 17:00:13 EDT news705587200 Venus may be overwhelmingly inhospitable today, but many planetary scientists believe that it wasn't always this way. Billions of years ago, some observational evidence suggested that our planetary neighbor may have looked far more like Earth, complete with oceans potentially capable of harboring life. https://phys.org/news/2026-08-venus-polygonal-plains-watery.html Astrobiology Wed, 05 Aug 2026 08:00:09 EDT news705070220 If you've ever been under a dark sky in the early morning before dawn, you may have seen a faint glow, almost like a column of light rising from the east. It's sometimes known as the false dawn because it appears before true dawn. It can also appear in the west after sunset, though it typically isn't as noticeable. The glow is caused by dust in the inner solar system. It is a diffuse plane of tiny particles that aligns with the plane of the inner planets. Since the planets move through the zodiac constellations, so does this plane of dust, which is why it is also known as the zodiacal light. https://phys.org/news/2026-08-zodiacal-exoplanetary-hinder-life-worlds.html Astrobiology Mon, 03 Aug 2026 16:40:02 EDT news704987763 We know Mars has water ice in its polar regions, but astronauts (and their solar-powered equipment!) would much rather experience life closer to Mars' equator. As NASA looks toward landing humans on the red planet, the Planetary Science Institute (PSI) is mapping where water should and shouldn't be found and using statistics to quantify its certainty. Two new papers, led by PSI's Hanna Sizemore and Samuel Courville, highlight new global maps of subsurface water ice and identify the missions and tools needed to increase the certainty of the maps. https://phys.org/news/2026-07-laying-odds-potential-martian-future.html Astrobiology Fri, 31 Jul 2026 17:20:03 EDT news704725321 Before any major telescope commissioning, there are dozens of papers that attempt to define what we can expect from it. We're starting to see some come through for the Extremely Large Telescope (ELT), which hopefully will get a more imaginative name when the 39 m (128-foot) behemoth is officially commissioned in Chile in the 2030s. https://phys.org/news/2026-07-elt-spectrograph-biosignatures-worlds.html Astrobiology Fri, 31 Jul 2026 16:00:03 EDT news704721302 Space isn't known for rich soil or ideal agricultural conditions anywhere in the solar system. Yet amid extreme temperatures and vast distances, multidisciplinary teams at USF's Aerospace: Science, Technology, Research and Applications Center (ASTRA) are collaborating on sustainable space agriculture projects with potential applications back on Earth. https://phys.org/news/2026-07-scientists-advance-space-agriculture-future.html Space Exploration Thu, 30 Jul 2026 12:00:05 EDT news704625181 When astronomers talk about directly imaging an exoplanet orbiting a faraway star, the analogy they most commonly use is trying to spot a firefly next to a massive searchlight. An Earth-like exoplanet is incredibly dim—usually between 100 million and 10 billion times fainter than its host star. https://phys.org/news/2026-07-quantum-physics-earth.html Astrobiology Thu, 30 Jul 2026 07:40:01 EDT news704610361 We've been covering the journey of the Habitable Worlds Observatory for some time now. Over the past few years, it's gone from a proposal to a relatively fleshed-out plan for how and what the next Great Observatory should do—in this case, look at and characterize potentially habitable exoplanets. https://phys.org/news/2026-07-nasa-habitable-worlds-observatory.html Astronomy Mon, 27 Jul 2026 18:20:01 EDT news704378492 Europa, one of Jupiter's icy moons, has long fascinated scientists because of what may lie beneath its frozen shell: a global ocean of liquid water. That hidden ocean has made Europa one of the most compelling places in the solar system to study the conditions that might support life. But new research led by Rutgers scientist Lujendra Ojha suggests one of the most promising shortcuts to Europa's ocean may be far more complicated than previously thought. https://phys.org/news/2026-07-europa-hidden-ocean-difficult-scientists.html Astrobiology Fri, 24 Jul 2026 12:00:03 EDT news704105234 UK astronomers are a step closer to playing a leading role in NASA's search for alien life in the coming decades as they continue developing one of the core instruments of the Habitable Worlds Observatory (HWO). The exciting mission—the U.S. space agency's next flagship space telescope after the Nancy Grace Roman Space Telescope—is expected to launch in the 2040s. https://phys.org/news/2026-07-uk-pole-position-key-instrument.html Astrobiology Fri, 24 Jul 2026 11:00:09 EDT news704103592 Astronomers searching for signs of extraterrestrial intelligence may have been missing alien signals in part of the radio spectrum that has not recently been explored. https://phys.org/news/2026-07-alien-radio-channel.html Astronomy Thu, 23 Jul 2026 19:00:03 EDT news703934221 Dreams of finding a sort of Earth 2.0 motivate much of the thinking around the search for exoplanets. But there is more to exoplanet science than searching for potentially habitable worlds. Scientists need a deeper understanding of the overall exoplanet population to understand the cosmos. https://phys.org/news/2026-07-venus-zone-planets-plato-habitable.html Astrobiology Tue, 21 Jul 2026 12:00:02 EDT news703845362 Are we alone in the universe? For scientists working on NASA's proposed Habitable Worlds Observatory, that question is no longer purely philosophical. It is increasingly becoming an engineering problem. https://phys.org/news/2026-07-advance-tech-scientists-habitable-worlds.html Astrobiology Mon, 20 Jul 2026 07:40:01 EDT news703748041 Scientists have developed a new way to predict the strength of the sun's next activity cycle up to seven years before it reaches its peak. https://phys.org/news/2026-07-sun-reveal-future-space-weather.html Astrobiology Sun, 19 Jul 2026 19:00:03 EDT news703511720 Nearly a decade after the discovery of LHS 1140b, a rocky exoplanet in the habitable zone of a nearby low-mass star, a new study reveals that the object may have its own atmosphere. https://phys.org/news/2026-07-nearby-rocky-planet-replenishing-helium.html Astrobiology Thu, 16 Jul 2026 14:00:18 EDT news703345883 In a major milestone in the search for life on other planets, astronomers have detected, for the first time, an atmosphere surrounding an Earth-like, rocky planet orbiting within the habitable zone of another star. The finding provides the strongest evidence yet that worlds with conditions similar to Earth in composition and temperature, with the potential to support life, could exist beyond our solar system. https://phys.org/news/2026-07-life-solar-atmosphere-habitable-zone.html Astrobiology Thu, 16 Jul 2026 14:00:11 EDT news703314812 Scientists have painted the most detailed portrait yet of the planetary system orbiting Barnard's Star—the sun's closest neighbor after Alpha Centauri, just under six light-years from Earth. https://phys.org/news/2026-07-astronomers-nearby-planets-small-strange.html Astrobiology Wed, 15 Jul 2026 15:20:01 EDT news703340046 On July 16, 2024, a daytime meteor shook New York City with a sonic boom as it passed just south of the Statue of Liberty. Now, an international team of researchers reports in the journal Science Advances that a short time later, a meteorite weighing more than 2 pounds crashed through the roof of a house in the town of Hillsborough, New Jersey. https://phys.org/news/2026-07-alien-world-chemistry-meteorite-struck.html Space Exploration Wed, 15 Jul 2026 14:00:03 EDT news703263418 Astrobiology has long been split into two camps: a search for "biosignatures" and a search for "intelligence." These look for very different things, but they also leave a huge gap in between. It took 3.5 billion years for us to go from the first microbe to a civilization that sent radio waves into the cosmos. Detecting life in between those stages is a relatively untouched aspect of astrobiology—which is also the focal point of a new paper, "Signs and Signatures of Intelligence," available on the arXiv preprint server, by astrobiologist Julia DeMarines. https://phys.org/news/2026-07-universe-noosignatures.html Astrobiology Tue, 14 Jul 2026 20:40:02 EDT news703245931 A technique for judging whether a common mineral formed through biological activity could aid the search for ancient life on Earth and Mars. Apatite is a ubiquitous phosphate mineral found in terrestrial and extraterrestrial environments. It is a major component of teeth and bones, but it also occurs in igneous rocks and sedimentary phosphorites. https://phys.org/news/2026-07-driven-tool-mineral-biosignatures-worlds.html Astrobiology Tue, 14 Jul 2026 11:50:01 EDT news703246314 Scientists have detected evidence of landslides on Pluto for the first time. A paper published in the journal Icarus reports that images taken by the New Horizons spacecraft during a flyby revealed six large landslides in three impact craters. https://phys.org/news/2026-07-massive-landslides-icy-pluto.html Astrobiology Mon, 13 Jul 2026 15:30:02 EDT news703172932 Sugars are key biomolecules in living organisms, as they form the backbone of DNA and RNA and play a fundamental role in metabolic processes. In theories of the origin of life, sugars are also essential for the synthesis of the first nucleic acids. Despite their importance, one of the major questions in origin-of-life research is how the first sugars formed on Earth, since laboratory experiments show that they do not form in sufficient quantities under prebiotic conditions. https://phys.org/news/2026-07-sugar-interstellar-space.html Astronomy Mon, 13 Jul 2026 11:00:04 EDT news703140907 Ever so slightly bigger than Earth, the exoplanet LHS 3844b orbits its parent star, LHS 3844, a red dwarf 48.5 light-years from our solar system. Its rotational speed mirrors its orbital speed. The result? One side of LHS 3844b is perpetually bathed in scorching sunlight, locked into a never-ending, blistering hot day, while the other is forever shrouded in darkness so cold that particles are incapable of movement, a state known as absolute zero (zero Kelvin). https://phys.org/news/2026-07-exoplanets-eternal-day-endless-night.html Astrobiology Fri, 10 Jul 2026 11:00:05 EDT news702896075 For the first time, astronomers have discovered stellar cocoons rich in complex organic molecules within a supernova remnant. A research team from Niigata University, Gifu University, RIKEN and Kyoto University in Japan used the Atacama Large Millimeter/submillimeter Array (ALMA) to observe the remnant of a massive star that exploded about 1,600 years ago. https://phys.org/news/2026-07-newborn-stars-rich-gas-ancient.html Astronomy Thu, 09 Jul 2026 11:50:01 EDT news702814502 When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of biology because they are often produced by living microbes. However, scientists can be misled because certain geological processes can produce chemical signatures identical to those of living organisms. https://phys.org/news/2026-07-baseline-tool-alien-life-geology.html Astrobiology Tue, 07 Jul 2026 13:30:01 EDT news702646858 Like a shelf in an old house, the Earth collects a lot of dust from its surroundings. This "space dust" is mostly made up of micrometeorites that survive atmospheric entry and provides researchers with a cheap and easy way to obtain samples to study our cosmic neighbors. However, it can be difficult to determine which objects certain samples originated from if their parent bodies aren't already in available catalogs. A recent study, published in Science Advances, describes a new subset of space dust with such mysterious origins and how researchers are tracking down potential sources. https://phys.org/news/2026-07-earth-space-unidentified-asteroids.html Astrobiology Tue, 07 Jul 2026 12:50:02 EDT news702646844