[Science News] TESS Finds Puffy Planets as Black Sea Blooms (6.25)

NASA reported new observations from Earth orbit and deep space, while ScienceDaily summarized research on vitamin B12, brain development and a rare liver…

TESS Finds Puffy Planets as Black Sea Blooms (6.25)

Overview

NASA said the Black Sea turned turquoise in a June 22 satellite image, probably because calcium-plated phytoplankton reached seasonal dominance.
NASA reported that TESS data revealed two Jupiter-sized planets around TOI-791 with densities so low that scientists class them among the lightest known worlds.
ScienceDaily summarized research linking vitamin B12 shortage with mitochondrial function, fatigue and brain fog before classic deficiency signs appear.
ScienceDaily reported that brain cells may use lineage, or cellular family tree, to help organize a brain containing billions of neurons.
ScienceDaily described tumor-sample work in which AMD3100 helped immune T cells reach a rare liver cancer that can resist immunotherapy.

NASA Satellite Tracks a Seasonal Turquoise Bloom in the Black Sea

NASA reported that the Black Sea, often dark from orbit, shifted into a broad turquoise pattern in late June as seasonal biology changed the surface waters. The agency said the Ocean Color Instrument aboard PACE, short for Plankton, Aerosol, Cloud, ocean Ecosystem, captured the image on June 22, 2026.

The color points to coccolithophores, a form of phytoplankton covered with calcium carbonate plates. Those plates can scatter sunlight and give seawater a milky-blue cast. NASA described the explanation as likely, which matters because satellite color is evidence of a biological process rather than a direct sample from the water.

The timing fits the known seasonal pattern. NASA said these phytoplankton tend to dominate in late spring and early summer. The image therefore works less like a one-off curiosity and more like a snapshot of a recurring ocean event that satellites can now follow with finer detail.

▸ Black Sea bloom deep dive

The Black Sea image sits at the meeting point of biology, chemistry and remote sensing. Coccolithophores are tiny photosynthetic organisms. Their calcium carbonate plates, called coccoliths, make them unusually visible from space when blooms grow dense enough near the surface. The same physical feature that protects or stabilizes the cell also changes the way sunlight reflects back to a satellite sensor.

That makes the bloom useful for more than color imagery. Ocean-color instruments let researchers infer where microscopic life is active across large areas that ships cannot sample every day. PACE was designed for that sort of work. Its name links plankton, aerosols, clouds and ocean ecosystems because those systems interact through carbon, particles and sunlight.

The science limit is also clear. A turquoise surface does not prove a bloom by itself. NASA’s wording leaves room for confirmation through field measurements, water samples or additional spectral analysis. In science reporting, that distinction matters. The observation supports a likely biological explanation, but it does not turn the whole Black Sea into a uniform laboratory sample.

The seasonal context helps strengthen the reading. Late spring and early summer bring conditions that can favor phytoplankton growth, including changes in light, water mixing and nutrients. When coccolithophores dominate, their reflective plates can become visible at basin scale. That gives satellites a way to record how biological timing changes from year to year.

The broader implication is environmental monitoring, not spectacle. A bloom can affect the ocean’s carbon cycle because phytoplankton take up carbon as they grow, and calcium carbonate formation is part of marine chemistry. A single June image cannot establish a climate trend. It can, however, add one dated observation to the longer record of how the Black Sea behaves during its productive season.

TESS Data Add Two Ultra-Low-Density Worlds to Exoplanet Science

NASA said data from the Transiting Exoplanet Survey Satellite, or TESS, revealed two giant planets around the Sun-like star TOI-791. The planets, named TOI-791 b and TOI-791 c, are roughly Jupiter-sized but have only a small fraction of Jupiter’s mass.

That combination makes them unusually low in density. NASA described them as “super-puff” planets, a term astronomers use for large worlds with extended atmospheres and very little mass for their size. The agency said scientists calculate that the pair are the “puffiest” planets yet found.

The finding matters because radius and mass tell different parts of the story. A planet can look large during a transit because it blocks a measurable slice of starlight. Its mass requires separate analysis. When those two measurements do not match familiar gas-giant expectations, researchers get a test case for how planets form, cool and hold atmospheres.

▸ TESS planets deep dive

TESS finds planets mainly by watching stars dim when a planet crosses in front of them. This transit method gives researchers a planet’s size relative to its star. To call a planet extremely low-density, scientists also need a mass estimate. Density comes from combining mass and volume, so a Jupiter-sized planet with a much lower mass becomes physically unusual.

Super-puff planets challenge simple categories. A familiar gas giant such as Jupiter is large and massive. A super-puff can have a similar radius but much less material packed inside that radius. That points to an inflated atmosphere, a low-gravity outer envelope, or formation conditions that left the planet with a very extended layer of gas.

The TOI-791 system is valuable because it gives astronomers more than a single odd world. NASA said TESS identified two giant planets in orbit around the same Sun-like star. Multiple planets in one system let researchers compare neighboring worlds that formed in the same broad environment. Differences between them can help separate planet-specific history from system-wide conditions.

The phrase “cotton candy” is a public-facing analogy, not a literal material claim. It communicates that the density is exceptionally low. The scientific question underneath is how such planets keep their large radii. Stellar radiation, atmospheric escape, orbital history and internal heat can all affect the final structure.

The next step is usually atmospheric and orbital follow-up. Transit timing, mass refinement and spectroscopy can test whether the planets have hydrogen-rich atmospheres or hazes that make them appear larger. TESS supplies the discovery path, but deeper characterization often requires other observatories. For now, the key result is a measured mismatch: two planets with giant radii and unusually small masses.

Vitamin B12 Research Links a Common Deficiency to Cellular Energy

ScienceDaily summarized research on vitamin B12, a nutrient needed in tiny quantities but tied to large effects on health and energy. The report said B12 was first connected nearly a century ago to a liver-based treatment for pernicious anemia, a serious blood disorder caused by impaired B12 absorption.

The newer angle is cellular energy. ScienceDaily reported that researchers are finding B12 may help mitochondria function properly. Mitochondria are the cell structures that convert nutrients into usable energy, so the proposed link offers one route by which a deficiency could resemble ordinary fatigue or aging.

The report also connected B12 shortage with fatigue and brain fog before traditional deficiency signs appear. That wording should be read carefully. It suggests a plausible biological relationship, not a claim that all fatigue or cognitive dullness comes from B12 status.

▸ Vitamin B12 deficiency deep dive

Vitamin B12 has a long medical history because its absence can damage blood formation and nerve function. The historical link to pernicious anemia matters because it shows how a nutrient measured in microscopic amounts can produce systemic effects. Small required dose does not mean small biological role.

The mitochondrial angle gives the story a different frame. Mitochondria are often described as cellular powerhouses because they help produce ATP, the molecule cells use for energy. If B12 status affects mitochondrial function, then a shortage could appear first as broad symptoms, including low energy or mental fog, before the clearest textbook signs emerge.

That is also where the evidence boundary belongs. The provided report does not give a trial size, a patient cohort, a p-value or a journal citation. It says researchers are finding a possible role for B12 in mitochondrial function. A cautious reading treats that as a mechanistic lead rather than a clinical rule.

The aging comparison is useful but risky if overstated. Fatigue, slower thinking and reduced stamina can come from many causes. B12 deficiency can mimic some of those experiences because cells depend on the vitamin for normal function. But similarity in symptoms does not establish one cause. The claim is strongest when tied to measured deficiency and biological markers.

The practical implication for science is a better explanation for early symptoms. If mitochondrial disruption appears before classic deficiency markers, researchers may look for earlier indicators of risk. That could change how studies classify borderline cases. The current finding does not replace established diagnosis; it points toward a possible reason some symptoms appear before older clinical thresholds catch them.

Brain Cells May Use Family Trees to Help Build Order

ScienceDaily reported that researchers are studying how a single cell can give rise to a brain with billions of organized neurons. The central idea is lineage: cells may use their cellular family tree as a kind of positional map during brain development.

The report said cells from the same ancestor tend to remain near one another. That pattern could help the brain organize itself without relying only on chemical signals. In plain terms, where a cell comes from may help determine where it ends up.

The result is a developmental clue, not a full map of brain formation. Chemical gradients, cell migration, gene activity and mechanical constraints still matter. The lineage proposal adds another layer to how researchers explain the movement from one starting cell to a highly structured nervous system.

▸ Brain lineage deep dive

Brain development has to solve a scale problem. A single fertilized cell begins the process, yet the mature brain contains billions of cells arranged into regions, circuits and layers. Researchers have long known that chemical signals help guide that organization. The reported lineage finding asks whether ancestry itself also carries spatial information.

A cellular family tree records divisions over time. If daughter cells and related descendants stay near one another, development gains a built-in organizing principle. The brain would not need every cell to calculate its position from scratch. Local ancestry could narrow the range of possible destinations and help related cells form nearby structures.

That idea fits a broader trend in developmental biology. Researchers increasingly treat tissues as histories, not just final shapes. The position of a cell can reflect earlier divisions, migrations and constraints. In this view, anatomy is partly a record of decisions made at previous stages.

The finding also refines the role of chemical signaling. It does not remove chemical cues from the story. Instead, it suggests those cues may act on cells that already carry lineage-based context. A signal may produce different outcomes depending on a cell’s family history and local neighbors.

The next challenge is proof across species, brain regions and developmental stages. The provided report gives the concept, not the full method. Stronger conclusions would require tracing cell lineages, measuring distances between related cells and testing whether disrupting lineage patterns changes brain architecture. For now, the value is conceptual: brain organization may emerge from ancestry plus signaling, not signaling alone.

Rare Liver Cancer Study Tests a Way to Unblock Immunotherapy

ScienceDaily reported that researchers found a rare liver cancer can evade immunotherapy by pulling immune T cells away from the tumor. The cells become trapped in nearby fibrous tissue instead of reaching the cancer cells they are meant to attack.

The report said an FDA-approved drug, AMD3100, freed those T cells in tumor samples and significantly improved the effectiveness of immunotherapy. Because the evidence described involves tumor samples, it should not be read as proof of patient benefit in a clinical trial.

Still, the mechanism is important. Immunotherapy can fail even when immune cells are present if those cells cannot reach the tumor. A drug that changes the immune cells’ location could make an existing treatment work better in a cancer that currently resists it.

▸ Liver cancer immunotherapy deep dive

The study points to a physical and biological barrier rather than a simple absence of immune response. T cells are the immune system’s targeted attackers. If a tumor can draw them into surrounding fibrous tissue, the body may appear to have mounted a response while the cancer itself remains protected.

That distinction matters for immunotherapy. Many cancer treatments try to activate or release immune cells so they can recognize tumors. But activation alone may not solve the problem if the cells are misdirected. The ScienceDaily report describes a rare liver cancer that uses location as part of its escape strategy.

AMD3100 is important because it is already FDA-approved for another medical use. That does not mean it is approved for this cancer or this combination. It does mean researchers may know more about its safety profile than they would for a brand-new compound. Repurposing an approved drug can sometimes shorten the path to testing, though it still requires cancer-specific evidence.

The phrase “tumor samples” marks the main limit. Sample-based findings can reveal mechanisms and treatment responses under controlled conditions. They cannot show survival benefit, dosing, adverse events or real-world patient outcomes. Those questions require clinical trials with defined participants, endpoints and follow-up.

The next scientific step is to test whether the same T-cell trapping pattern appears consistently across patients and whether AMD3100 can reverse it safely in the body. If that holds, the approach would represent a combination strategy: not replacing immunotherapy, but changing the tumor environment so immunotherapy has a clearer path to its target.

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Reported by sciencedaily.com. How does a single cell build a brain with billions of precisely organized neurons?

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At a glance

Fact	Publisher	Source
NASA’s PACE satellite imaged turquoise waters in the Black Sea on June 22, 2026.	nasa.gov	science.nasa.gov
Coccolithophores likely caused the Black Sea’s milky-blue surface color.	nasa.gov	science.nasa.gov
TESS data identified TOI-791 b and TOI-791 c as Jupiter-sized, very low-density planets.	nasa.gov	science.nasa.gov
Scientists calculated that TOI-791 b and c are the “puffiest” worlds yet found.	nasa.gov	science.nasa.gov
ScienceDaily reported that vitamin B12 shortage can affect energy and health.	sciencedaily.com	sciencedaily.com
Researchers linked B12 to mitochondria, the cell structures that help produce energy.	sciencedaily.com	sciencedaily.com
Brain cells may use lineage, or cellular family tree, as a positional map.	sciencedaily.com	sciencedaily.com
AMD3100 freed immune T cells in rare liver cancer tumor samples, ScienceDaily reported.	sciencedaily.com	sciencedaily.com

FAQ

Q1. What was the clearest space-science finding in this briefing?

A. NASA’s TESS report supplied the strongest exoplanet result: two planets, TOI-791 b and TOI-791 c, are roughly Jupiter-sized but have far lower mass. That makes their density unusually small among known worlds.

Q2. How did NASA infer the Black Sea bloom from space?

A. NASA used PACE’s Ocean Color Instrument, which measures reflected light from the ocean surface. The June 22, 2026 image showed turquoise water consistent with coccolithophores, phytoplankton covered in reflective calcium carbonate plates.

Q3. What is the biomedical significance of the B12 report?

A. ScienceDaily described a possible link between vitamin B12 shortage and mitochondria, the cell structures tied to energy production. That mechanism could explain fatigue or brain fog before classic deficiency signs, but the report gives no trial size.

Q4. How does the brain-development finding differ from older explanations?

A. ScienceDaily reported that lineage may act as a positional map. That adds cellular ancestry to chemical signaling, suggesting related brain cells may stay near one another as billions of neurons become organized.

Q5. What needs follow-up before the liver cancer result can change care?

A. ScienceDaily described AMD3100 effects in tumor samples, not a completed patient trial. Researchers still need clinical evidence on dosing, safety, response rates and whether freeing T cells improves outcomes in rare liver cancer.

Sources

Last updated: 2026-06-26T01:03:33.078Z

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