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Ocean Planet Expeditions: Alvin Submersible Certified To Return To Service
Editor’s note: Submersibles and oceanic exploration have a long history of intersection and collaboration. NASA Astronaut Loral O’Hara was a research engineer at Woods Hole Oceanographic Institution working with deep-ocean scientific research submersibles and robots prior to joining NASA. Astronaut Kathy Sullivan completed a dive aboard Alvin to 8,500 feet in 1996. Sullivan later became…
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A New Earth-like Exoplanet Discovered
[UC Irvine] A team led by astronomers at the University of California, Irvine reports the…
Curiosity Rover Takes a Close Look at Martian Sulfur Crystals
[NASA] These sulfur crystals were found inside a rock after NASA’s Curiosity Mars rover happened…
Unraveling The Building Blocks Of Earth’s Pigments
[Ohio State] Although they are some of the most widespread substances on Earth, not much…
Astrochemical Study of Early Embedded Discs
[astro-ph.SR] The question of how our planet was formed and, more generally, how a planetary…
A Panspermia Origin For Venus Cloud Life
[USRA] Panspermia is the idea that life can originate on one planetary body and then…
Theoretical Determination Of The Binding Energies Of Methanol And Related Species Onto Amorphous Solid Water Ice
[astro-ph.GA] The formation and survival of complex organic molecules (COMs) in cold interstellar environments depends…
Probing Outflow Physics Through CH3CN And CH3OH Chemistry
[astro-ph.GA] Chemical correlations between molecules provide powerful diagnostics to probe the physical conditions of protostellar…
The Line Emission Terahertz Observatory (LETO): Exploring The Lifecycle Of The ISM And The Origins Of Water
[astro-ph.IM] The Interstellar Medium (ISM) is the reservoir of baryonic matter from which stars and…
Earth As A Potential Source Of Llife For Europa’s Subsurface Ocean
The paper discusses the possibility of dust particles containing living bacteria ejected from Earth reaching Europa and landing on its surface. It is shown that, taking certain factors into account, over a period of 30 − 80 Myr (the estimated age of Europa’s ocean), Jupiter’s moon would have been impacted…
Keep readingDust To Dust: Prospects For Passive Technosignatures As Relics Of ETI
Technological societies are separated in time, not just space — that is the lesson of the Drake equation. Might the best way to seek them be to find technosignatures that persist long after their creators? I present work I and my collaborators have done on the idea of passive technosignatures,…
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Habitable Zones
Astronomy & Telescopes
Atmospheres, Climate, Weather
Orbital Biosignature Assay: Summer Algal Bloom Spreads Across The Baltic Sea
[European Union] During the summer months, large algal blooms occur frequently in the Baltic Sea. Often driven by warmer temperatures, abundant sunlight, and nutrient-rich waters, these blooms can reduce water quality and affect marine life. In late June 2026, a new algal bloom was observed across parts of the Baltic Sea. This image, acquired by…
Read moreExploration Gear & Tech
Ocean Planet Exploration: New University of Rhode Island Ocean Robotics Laboratory
[URI] The University of Rhode Island celebrated a major milestone in the $300 million, multi-phase revitalization of the Narragansett Bay Campus with a ribbon cutting…
Perseverance Astrobiology Droid Has Completed A Martian Marathon
[NASA] On June 14, 2026, Mars Perseverance rover completed a Martian “marathon” by surpassing 26.2 miles (42.195 kilometers) of travel. The day before, NASA’s Mars…
Tricorder Tech: ESA CAVES 2026 Cavenauts Use An Electronic FieldBook
Astronauts Tracy Dyson (NASA), Rosemary Coogan (ESA) and Ayu Yoneda (JAXA) measuring water parameters and recording them in the Electronic FieldBook during ESA CAVES2026 course.…
Imaging & Spectroscopy
Mars Perseverance Image of the Week for Week 280 (June 21 – 27, 2026)
[NASA] This photo was selected by public vote and featured as “Image of the Week” for Week 280 (June 21 – 27, 2026) of the…
Implications Of Self-consistent H2O Ice Optical Constants On Radiative Transfer Models Of Disks
[astro-ph.EP] Interstellar water (H2O) ice exhibits significantly varied profiles over its spectral features with temperature and thermal history. No previous radiative transfer model of a…
The GAPS Programme at TNG LXXIV. A Reanalysis Of The Planetary Systems TOI-1272 And TOI-1694 With HARPS-N And Retraction Of The Planetary Interpretation Of TOI-1272 c
[astro-ph.EP] Hot Neptunes are close-in exoplanets that occupy a sparsely populated region of parameter space known as the “hot-Neptune desert”. Their presence in this extreme…
Biosignatures & Paleobiology
Machine Learning And Deep Learning For Exoplanet Detection And Atmospheric Characterization With JWST And The Upcoming Ariel Mission
[astro-ph.IM] The detection and atmospheric characterization of exoplanets have entered a new data-intensive era driven by the James Webb Space Telescope and the upcoming Ariel…
An Agnostic Machine Learning Model of Photosynthetic Habitability
The search for exoplanet biosignatures is guided by whether planetary environments can sustain photosynthesis. As such, the Photosynthetic Habitable Zone (PHZ) was recently proposed, as…
A Look At Eight Outbursts Of Comet 7P/Pons-Winnecke
Cometary outbursts may be used as a means to infer the physical processes occurring on cometary nuclei. To that end, we studied eight outbursts of…