October 22, 2026 · Science & Research Daily Digest
A digest of science, space, biomedicine, and climate research for October 22, 2026, with summaries, links, and commentary.
I. Space and Deep Space
1. Psyche has thrust nearly continuously since September 28, and the thrusters will run about 90% of the time (Spaceflight)
Summary:
NASA Science posted a Psyche mission blog on October 22. After the October 2023 launch, the spacecraft used solar electric propulsion intermittently so it could reach the geometry for a Mars gravity assist, which is now complete. On September 28 it began thrusting almost continuously, pausing once a week to check in with Earth, and remains on track to meet the metal-rich asteroid Psyche in the main belt in summer 2029. Don Han, navigation lead at the Jet Propulsion Laboratory, said the thrusters will operate nearly 90% of the time from now until arrival. One of four Hall thrusters fires at a time, delivering up to 250 millinewtons. Peak cruise speed will exceed 100,000 mph (160,900 kph) relative to an observer on Earth. The cross-shaped solar arrays collect sunlight over 75 square meters. The spacecraft launched with about 1,090 kilograms of xenon and has used about one third in three years, leaving propellant for arrival and a two-year prime science mission. It will thrust at full power for the next three months, then throttle toward about half power as sunlight weakens. The asteroid is about 280 kilometers across at its widest and is thought to be a partial core of a planetesimal.
Links:
Commentary:
The figure near 90% is the thrusting duty cycle from now until arrival, and 160,900 kph is peak cruise speed relative to an Earth observer; the ion-swirl torque of a Hall thruster can be measured only in flight, so the cruise itself is that experiment.
2. ESA’s 350th Council discussed a scalable path for Earth orbit, the Moon, and Mars, with two directors starting January 1, 2027 (Spaceflight)
Summary:
The European Space Agency issued press release N° 67–2026 on October 22. The 350th Council at delegate level met at ESA Headquarters in Paris on October 21 and 22. Member states advanced preparations for the Intermediate Ministerial Meeting in Rome on December 15 (IMM26), the longer path toward CM28, and cooperation with the European Union. The Council discussed the Director General’s proposal, “Europe’s Future in Space Exploration,” which sets out a scalable path in low Earth orbit, on the Moon, and toward Mars, combining greater European autonomy with international cooperation and a financially sustainable approach. IMM26 is a step toward program and funding decisions at CM28, while early preparatory work stays inside existing financial envelopes. The Council appointed Andrzej Banasiak as Director of Commercialisation and Industry Partnership and Nicolaus Hanowski as Director of Space Operations. Both take up their duties on January 1, 2027.
Links:
Commentary:
The release sets the exploration framework and the two appointments; it does not publish a budget figure for IMM26.
3. Space Rider’s full-scale drop test lost its parafoil on deployment, and the cause is still unknown (Spaceflight)
Summary:
European Spaceflight reported on October 22 that Géraldine Naja, ESA’s Director of Space Transportation, gave new details at that day’s media briefing after the Council. The drop test was on October 6 over a military range in Sardinia. A full-scale model was released from a helicopter at about 3 kilometers. The drogue parachute opened as planned, but the parafoil that was supposed to steer the landing detached from the model, which then hit the ground. Teams recovered remnants and set up an investigation board. Naja said the cause of the detachment has not been identified. Earlier qualification had already shown parafoil deployment, autonomous guidance, and the handoff from drogue to parafoil as separate elements. She said the remaining qualification work is not on the critical path, while the schedule will be reviewed after the board reports. ESA still targets a first flight on Vega C in the first half of 2028.
Links:
Commentary:
The altitude of about 3 kilometers and the October 6 date come from the director’s October 22 briefing as reported; the investigation has not named a cause, and the first-half-of-2028 window is the target pending that review.
II. Biomedicine
4. Human AGO2 becomes the C-to-U RNA editor ALTER, with 1.9-fold higher editing than Cas13 editors in cells (Gene editing)
Summary:
Nature Biotechnology published an open-access paper by Robert F. Lusi, Steven M. Banik, and colleagues on October 20, with a research briefing on October 22. ALTER fuses human Argonaute 2 to a C-to-U deaminase. Guide RNAs remodel the target RNA into a loop and reduce nuclease activity, so the editor does not rely on a bacterial Cas protein. On mRNA targets in HEK293T cells, ALTER produced on average 1.9-fold higher C-to-U editing than the Cas13 editors CURE and RESCUE. Transcriptome-wide RNA sequencing found similar or lower off-target editing than those Cas13 editors. Machine-learning models predict fewer immunogenic peptides, and the authors show that ALTER can enter an existing artificial-intelligence deimmunization workflow.
Links:
Commentary:
The 1.9-fold figure is average editing in HEK293T cells relative to CURE and RESCUE; the paper reports programmability and immunogenic-peptide predictions, with no human efficacy data.
5. Recordanelles store a sample covering up to 90% of expressed genes in human cells for several days (Transcriptomics)
Summary:
Nature Biotechnology published an open-access paper by Christopher D. Reinkemeier, Randall J. Platt, and colleagues on October 21, with a research briefing on October 22. A recordanelle is one protein: a mitochondrial membrane anchor, a condensate-assembler peptide, and a poly(A)-binding protein. The best-performing version, V2, uses the first 70 amino acids of TOM20, TAF15N, and a truncated PABPC4 variant. It can recruit engineered RNAs or a sample of endogenous human mRNAs. In HEK293T cells, TAF15N-based recordanelles enriched 90% of expressed genes in the organelle fraction, using a fold change above 1.5 and a false-discovery rate below 0.01. The paper says this means those transcripts are represented, not that 90% of the RNA molecules in the cell are bound. Transient responses from inducible promoters and interferon signaling remained readable for several days at single-cell resolution. The authors report that recording over several days did not alter mitochondrial function or cellular physiology.
Links:
- Nature Biotechnology — Recordanelles for transcriptome-wide single-cell RNA recording in human cells
Commentary:
The 90% figure is the share of genes expressed in HEK293T cells that were enriched in the organelle; the denominator is detected genes, and the archive covers a history of several days.
6. The FDA lifted the clinical hold on oral PD-L1 inhibitor AB-101; early signals come from seven people with chronic hepatitis B (Drug development)
Summary:
Arbutus Biopharma said on October 22 that the U.S. Food and Drug Administration had removed the clinical hold on the investigational-new-drug application for AB-101, so the company may continue clinical development in the United States. Next steps are still being evaluated. AB-101 is an oral PD-L1 inhibitor designed to revive hepatitis B-specific immunity. The completed Phase 1a/1b study AB-101-001 tested single- and multiple-ascending oral doses in healthy volunteers and people with chronic hepatitis B. The company said the healthy-volunteer parts and Part 3 in patients showed the drug was generally well tolerated, with high receptor occupancy in seven patients and a decline in hepatitis B surface antigen in two patients at the 30 mg dose. The release cites a World Health Organization estimate of more than 250 million people living with chronic hepatitis B and about 1.1 million deaths a year from related complications.
Links:
Commentary:
Lifting the hold restores permission to continue development in the United States; the surface-antigen decline is described for two patients at 30 mg, and the company has not published the size of a next trial.
7. BioNTech plans to swap chemotherapy for Trodelvy in a Phase 3 triple-negative breast cancer trial, pending regulators (Oncology)
Summary:
On October 22 BioNTech announced a clinical-trial collaboration and supply agreement with Gilead to test the investigational bispecific immunomodulator pumitamig with the TROP2 antibody-drug conjugate sacituzumab govitecan (Trodelvy). The setting is first-line treatment of locally advanced or metastatic triple-negative breast cancer with low or negative PD-L1. Pumitamig, developed with Bristol Myers Squibb, binds PD-L1 and VEGF-A. The global double-blind Phase 3 trial ROSETTA Breast-01 (NCT07173751) currently compares pumitamig plus chemotherapy with chemotherapy in patients whose combined positive score is below 10, a design started after a positive global Phase 2. BioNTech and Bristol Myers Squibb plan to replace the chemotherapy with sacituzumab govitecan once regulators approve the change. BioNTech will keep sponsoring and leading the trial, and Gilead will supply the conjugate. This would be the first global Phase 3 of pumitamig with an antibody-drug conjugate. Pumitamig is already in seven ongoing global Phase 3 trials. The company says the safety and efficacy of the combination have not been established.
Links:
Commentary:
The October 22 announcement is a supply agreement and a proposed protocol change; the combination enters this comparison only after regulators approve it.
8. Cognition aligned with the FDA on a Lewy-body dementia Phase 3: 100 mg for nine months, with hallucinations and delusions as the primary endpoint (Neuroscience)
Summary:
Cognition Therapeutics said on October 22 that it had aligned with the U.S. Food and Drug Administration on patient selection, dose, duration, and endpoints for a registrational Phase 3 study of zervimesine (CT1812) in dementia with Lewy bodies. The planned trial will enroll people with mild-to-moderate disease and randomize them to 100 mg of oral zervimesine once daily or placebo for nine months. The primary endpoint is the Neuropsychiatric Inventory subscale for hallucinations and delusions (NPI-2). A key secondary endpoint is the Alzheimer’s Disease Cooperative Study–Activities of Daily Living scale (ADCS-ADL). Chief executive Lisa Ricciardi said the discussions were with the Divisions of Neurology and Psychiatry in the Office of Neuroscience, and that the protocol is being completed. The company also says there are no approved treatments for the disease. The alignment itself is not an efficacy result.
Links:
Commentary:
The 100 mg dose and the nine-month duration are the planned regimen; the release gives neither a planned enrollment figure nor a new efficacy number.
III. Climate and Environment
9. IUCN: under a 2.7°C scenario, 96% of shallow coral-reef ecosystems face an extremely high risk of collapse by 2075 (Ecology)
Summary:
On October 22 the International Union for Conservation of Nature released the first global Red List of coral-reef ecosystems, from Gland and from Yerevan. The assessment covers 127 tropical and subtropical ecoregions and 188,362 square kilometers of shallow reefs. Under the Intergovernmental Panel on Climate Change middle-of-the-road scenario, with 2.7°C of atmospheric warming by the end of the century, 96% of the ecosystems are Critically Endangered and face an extremely high risk of collapse by 2075. The Great Barrier Reef, the Coral Triangle, the Mesoamerican Barrier Reef, and Red Sea reefs are all in that category. Heat stress is described as the single most consistent driver. Using only changes observed over the past 50 years, and leaving out future climate projections, the Critically Endangered share is 24%. Four of the 127 ecoregions are Data Deficient, and the Western Galápagos Islands have been classed as Collapsed since the 1982–83 El Niño. Overexploitation of parrotfish and groupers threatens 63% of the reef ecosystems. More than 250 experts from more than 80 countries and territories contributed. A separate reassessment of 892 reef-building coral species found 44% threatened with extinction.
Links:
Commentary:
The 96% figure is the Critically Endangered share after the 2.7°C projection is included, and 24% is the share for the same ecosystems judged only on the past 50 years; collapse means hard corals largely disappear and algae, rubble, and sponges take over.
10. St Andrews: cooling only the high northern latitudes produced about 74% of the CO2 drawdown of cooling the whole planet (Climate)
Summary:
The University of St Andrews, via Phys.org on October 22, described a Journal of Climate paper published that day. Madison Shankle of the School of Earth and Environmental Science is lead author, with Graeme MacGilchrist, Andrea Burke, Alice Marzocchi, Malte Jansen, and James Rae. Ice-age drops in atmospheric carbon dioxide are understood to be driven largely from the Southern Ocean, and the remote link from growing northern ice sheets has been missing. The paper proposes that those ice sheets cool nearby North Atlantic water, which later reaches the Southern Ocean, changes circulation and sea ice, and stores more carbon dioxide. In an idealized ocean model, cooling only the far northern latitudes produced 74% of the carbon-dioxide drawdown seen when the entire planet was cooled. The authors present this as a plausible ice-age mechanism demonstrated in simulations.
Links:
- Phys.org — Earth's hemispheres may have worked together to drive past ice ages
- Journal of Climate — Isolated Northern Hemisphere Cooling
Commentary:
The 74% figure compares northern-only cooling with whole-planet cooling inside an idealized model of past ice ages; it is not a direct forecast of present-day emissions policy.
11. New Guinea fires: Papua New Guinea had released nearly 32 megatons of carbon by October 19 (Environment)
Summary:
NASA Earth Observatory published on October 22 an image from the VIIRS instrument on NOAA-20, taken October 11, of thick smoke streaming off southern New Guinea. Drought tied to a strong El Niño fed fires through September and October. Smoke delayed and canceled flights and closed schools. The Global Fire Emissions Database estimates that fires in Papua New Guinea, the eastern half of the island, had released nearly 32 megatons of carbon by October 19, more than any other year on record at that point in the year. Guido van der Werf of Wageningen University said emissions are already much higher than the 2015 annual total and are very likely to surpass 1997, which would make this the highest year on record for the country. On the Indonesian side, carbon emissions exceeded 35 megatons, third after 2015 and 1997. Papua New Guinea’s National Weather Service said the far south went more than 90 consecutive days without rain, and that since August parts of the region have seen about 5% to 10% of normal precipitation. Researchers expect fires to continue until the southern wet season, which typically arrives in early November.
Links:
Commentary:
Nearly 32 megatons and more than 35 megatons are carbon-mass estimates through October 19 from a satellite-driven fire-emissions model, not a direct weighing and not a finished annual total.
12. China’s 2026 climate-policy report: 2025 carbon dioxide per unit of GDP was 17.7% below 2020 (Climate policy)
Summary:
Eco China on October 22 carried a People’s Daily account of a State Council Information Office briefing on October 21, at which Li Gao, vice minister of ecology and environment, presented China’s Policies and Actions on Climate Change 2026. The report says that in 2025 carbon dioxide emissions per unit of GDP were 17.7% lower than in 2020, the non-fossil share of energy consumption rose from 16.0% in 2020 to 21.7%, combined wind and solar capacity reached 1.84 billion kilowatts, forest stock was 20.988 billion cubic meters, and new-energy vehicles were 50.8% of new-car sales. All of the 2025 increase in electricity use was met by new renewable generation. By the end of July 2026, installed photovoltaic capacity had passed coal and become the largest power source. The national emissions-trading market now covers about 8.3 billion tonnes of carbon dioxide, more than 65% of the national total, and cumulative allowance trades have passed 1 billion tonnes. During the 14th Five-Year Plan the market was credited with about 530 million tonnes of reductions in thermal power. By the end of September 2026, China had issued 37 national standards for product carbon-footprint accounting, and the national greenhouse-gas emission-factor database held 576 factors. Li said some indicators in the 2030 nationally determined contribution have already been met early, and that the market is to expand to petrochemicals and chemicals by 2027.
Links:
Commentary:
The 17.7% and 21.7% figures are 2025 results relative to 2020, and 8.3 billion tonnes is the carbon dioxide currently covered by the trading market; the account does not list which nationally determined contribution indicators were met early.
IV. Basic Research
13. Electric current drives a helicene rotor with 100% directional preference, and reversing polarity reverses the direction (Molecular machines)
Summary:
Nature on October 22 published a paper by Anil Kumar Singh, Oren Tal, and colleagues at the Weizmann Institute of Science, the University of Augsburg, the University of Copenhagen, and Huazhong University of Science and Technology. A helicene molecule suspended between two electrode tips undergoes cyclic motion when a voltage is applied, with 100% directional preference, and the direction reverses when the voltage polarity is reversed. Above a voltage threshold the current through the rotating molecule rises, and the onset can be tuned by stretching or compressing the helix. Calculations attribute both the cyclic motion and the extra current to current-induced forces: rotation lets the molecule adopt highly conducting shapes that are unavailable at rest, and the mechanism predicts a shift from stepwise to continuous rotation at a threshold voltage. The authors present it as a prototype torque-driven molecular machine with a unidirectional rotor and modulated current.
Links:
Commentary:
The 100% figure is directional preference of the rotor in this junction; the paper does not give an operating voltage or power that can be copied into a device.
14. Reticular coordination disperses platinum at 14.9 wt%, and an electrolyzer degraded at 25 microvolts per hour (Catalysis)
Summary:
Nature Synthesis on October 22 published a paper by Yoon Jung, Taeghwan Hyeon, Byoung-Hoon Lee, and colleagues. Keeping precious metals atomically dispersed above 10 wt% without sintering under harsh conditions has been a standing problem. The authors anchor platinum atoms on cerium-oxo clusters inside a metal-organic framework and, after calcination, obtain Pt RC/CeOx with 14.9 wt% atomic dispersion. Under hydrogen above 300°C the isolated platinum does not sinter without limit; after a limited rearrangement into flat, tightly confined ultrasmall clusters, further migration is suppressed. Used at 0.15 milligrams of platinum per square centimeter in a proton-exchange-membrane water electrolyzer, the treated material degraded at 25 microvolts per hour. A 40 wt% platinum-on-carbon control, loaded at 0.40 milligrams per square centimeter, degraded at 106 microvolts per hour. The reticular material kept its structure after 500 hours at 1 ampere per square centimeter.
Links:
Commentary:
The 25 microvolts per hour correspond to a platinum loading of 0.15 milligrams per square centimeter, and 106 microvolts per hour to 0.40; the comparison is degradation in this electrolyzer test, not hydrogen cost at equal platinum use.
15. Science reports body-centered cubic iron above 200 gigapascals at European XFEL; whether Earth’s inner core has that structure remains open (Geophysics)
Summary:
Science published a news article by Paul Voosen on October 22. The HotCores project led by Sébastien Merkel at the University of Lille used the European X-ray Free-Electron Laser to squeeze a sliver of iron, thinner than a hair, between diamond anvils and to heat it with femtosecond X-ray pulses that also record diffraction. The project site describes HotCores as a 2.5-million-euro grant from the European Research Council. The paper appeared in August in Physical Review B, led by Zuzana Konôpková of European XFEL and Eric Edmund, and was an editors’ suggestion. Between 120 and 160 gigapascals a hexagonal phase is stable; above 200 gigapascals a diffraction peak of body-centered cubic iron appears. The project says that cubic phase was stabilized along an uncommon path, a drop of several thousand kelvin over 220 nanoseconds at pressures above 200 gigapascals. Science reports a clear cubic signal once pressure and temperature rose above 2.3 million atmospheres and about 5700°C, then says later samples could not repeat the result when the anvil cell missed that pressure, and that unpublished conventional laser-shock experiments have yielded only hexagonal iron. Merkel and the project page leave open whether Earth’s inner core actually has this cubic form. A different structure would change heat transport, the time when the inner core began to freeze, and the dynamo in the outer core.
Links:
- Science — Iron at Earth’s heart may take a surprising form
- Physical Review B — Observation of body-centered cubic iron above 200 gigapascals
Commentary:
The body-centered cubic signal appears on the experiment’s high-pressure, rapid-cooling path; Science also reports that later samples did not reproduce it, so the structure of the inner core is still unresolved.
Today's Summary
- Space: Since September 28, Psyche has thrust almost continuously, and the thrusters will run nearly 90% of the time until a summer 2029 arrival. ESA’s 350th Council discussed a scalable path for Earth orbit, the Moon, and Mars. Space Rider’s October 6 drop test lost its parafoil, and the cause is still unknown.
- Biomedicine: The human AGO2 editor ALTER averaged 1.9-fold higher C-to-U editing than two Cas13 editors in HEK293T cells, and recordanelles enriched 90% of the genes expressed in those cells. The FDA lifted the clinical hold on AB-101, and Cognition aligned a Lewy-body dementia Phase 3 at 100 mg for nine months.
- Climate and environment: Under a 2.7°C scenario, IUCN classed 96% of shallow coral-reef ecosystems as Critically Endangered; on the past 50 years alone the share is 24%. An idealized model that cools only the high northern latitudes produced about 74% of the carbon-dioxide drawdown of cooling the whole planet. Fires in Papua New Guinea had released nearly 32 megatons of carbon by October 19.
- Basic research: Electric current drove a helicene rotor with 100% directional preference. A reticular platinum catalyst degraded at 25 microvolts per hour in an electrolyzer test. European XFEL saw body-centered cubic iron above 200 gigapascals, and whether the inner core has that structure remains open.
Daily Framing:
October 22 was a window-and-thrust day: IUCN put 96% of shallow coral reefs in the Critically Endangered category under a 2.7°C scenario while marking the 24% share from the past 50 years alone as the remaining window for action, and Psyche opened its solar-electric thrusters for nearly nine-tenths of the time on the way to a metal asteroid in summer 2029.
This digest is compiled from real-time search results and is for reference only.