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An aluminum production chain for the Moon: Experimental demonstration of aluminum metal extraction for in-situ resource utilization

Publication date: 1 February 2026

Source: Advances in Space Research, Volume 77, Issue 3

Author(s): Xavier Walls, Alex Ellery, Katherine Marczenko, Priti Wanjara

Adaptive gaining-sharing knowledge region coverage planning for multi-stratospheric airships in complex environments

Publication date: 1 February 2026

Source: Advances in Space Research, Volume 77, Issue 3

Author(s): Xing-han Liu, Ming Zhu, Yi-fei Zhang, Tian Chen

Adaptive neural networks-based fixed-time fault-tolerant control for space manipulator with prescribed performance and input saturations

Publication date: 1 February 2026

Source: Advances in Space Research, Volume 77, Issue 3

Author(s): Sheng Gao, Wei Zhang, Ting Li, Zhaoguang Wang

Tropical weather cycles linked to faster Arctic ice loss in autumn

Phys.org: Earth science - Sun, 02/01/2026 - 16:40
When it comes to global warming and climate change, we often hear news stories about tipping points where Earth's systems shift into a new and dangerous state. One such may have been reached in the year 2000 that caused tropical weather cycles to have a greater effect on autumn sea ice melt across the Laptev and East Siberian seas, according to a study published in Science Advances.

How to cut harmful emissions from ditches and canals

Phys.org: Earth science - Sun, 02/01/2026 - 15:50
Ditches and canals are the underdog of the freshwater world. These human-made waterways are often forgotten, devalued, and perceived negatively—think "dull as ditchwater." But these unsung heroes have a hidden potential for climate change mitigation, if they're managed correctly.

Partial Shutdown Over DHS Funding Ensnares Education, Health

EOS - Sat, 01/31/2026 - 05:01
body {background-color: #D2D1D5;} Research & Developments is a blog for brief updates that provide context for the flurry of news regarding law and policy changes that impact science and scientists today.

Update, 3 February: After the House of Representatives voted 217 to 214 to approve the appropriations package earlier today, President Trump has signed the legislation into law, ending the partial government shutdown. The package includes five spending bills—which fund FEMA, the Department of Education, and the Department of Health and Human Services among other agencies—and a 2-week extension of DHS funding.

31 January: The U.S. government entered a partial shutdown Saturday at 12:01 Eastern time after Congress failed to resolve a showdown over funding for the Department of Homeland Security (DHS) and restrictions on Immigration and Customs Enforcement (ICE). The DHS appropriation was tied into a six-bill package that also included funding for the Departments of Defense, Education, Health and Human Services (HHS), Housing and Urban Development, Labor, State, Transportation, and Treasury.

Senate leaders and the White House struck a deal late Thursday evening to split the DHS spending bill away from the other five bipartisan appropriations bills. Friday evening, the Senate passed the amended appropriations package ahead of the shutdown deadline; it will continue to negotiate the DHS bill for 2 weeks.

However, any changes to the spending bills, including splitting them apart, also need to be passed by the House of Representatives, which is on recess until Monday 2 February. Until the House votes on the five-bill package, the agencies included in that package will remain shut down, as will DHS. (ICE will continue to operate during the shutdown due to money allocated in the One Big Beautiful Bill Act of 2025.)

“We may inevitably be in a short shutdown situation…but the House is going to do its job,” House Speaker Mike Johnson (R-La.) told reporters Thursday evening, suggesting that the House will act quickly to pass the amended five-bill package and avoid significant financial impacts.

What’s Shut Down for Science?

DHS runs the Federal Emergency Management Agency (FEMA), which is currently helping coordinate state-level responses to the massive winter storm that impacted millions of people across southern and eastern U.S. states over the past week. The DHS spending bill, which includes FEMA funding, has not been agreed upon or passed. Experts have said that FEMA would have enough money in its Disaster Relief Fund to continue to respond to storm-related impacts during a partial shutdown, at least for a few weeks.

During the most recent shutdown, which lasted 43 days this past fall, the Department of Education furloughed 87% of its employees. Under its shutdown contingency plan, the department states that it will continue to disburse Pell Grants and Federal Direct Student loans, and borrowers will still be required to make payments. States, schools, and other grantees will be able to access funds. However, no new grants will be issued, and its barebones Office of Civil Rights will pause reviews and investigations.

 
Related

During the fall 2025 shutdown, HHS furloughed 41% of its employees. According to its contingency plan, the department will maintain the minimal level of readiness for all health hazards, including pandemics and extreme weather response. Drug and medical device reviews will continue, as will disease outbreak monitoring and support to Medicare, Medicaid, and other healthcare programs. Data collection, validation, and analysis, grant oversight, and some CDC communications will cease.

Democrats are pushing for increased oversight and restrictions on ICE’s activities throughout the country after federal agents killed two people, Renee Macklin Good and Alex Pretti, in Minneapolis in January and engaged in other actions toward immigrants that have sparked national outrage. Democrats’ immigration demands have not been agreed to by Republicans or the White House.

Appropriations bills funding other science-related agencies, including the Environmental Protection Agency, National Science Foundation, NASA, NOAA, and the U.S. Geological Survey, have already become law. These agencies will continue to run during the current partial government shutdown.

—Kimberly M. S. Cartier (@astrokimcartier.bsky.social), Staff Writer

These updates are made possible through information from the scientific community. Do you have a story about how changes in law or policy are affecting scientists or research? Send us a tip at eos@agu.org. Text © 2026. AGU. CC BY-NC-ND 3.0
Except where otherwise noted, images are subject to copyright. Any reuse without express permission from the copyright owner is prohibited.

On Receiver Functions with Sediment Reverberations

Geophysical Journal International - Sat, 01/31/2026 - 00:00
SummaryTeleseismic P-wave receiver function (RF) analysis is a powerful tool for probing deep structures; however, its application to regions with sedimentary cover remains challenging. The interference by converted and reflected waves related to the sediments can form strong reverberations and render individual phases unidentifiable, complicating the investigation of sedimentary structures. Moreover, the strong, long-lasting sediment-induced waves can mask seismic phases from deeper layers, making it difficult to investigate the underlying layers. We investigated all the phases in RFs and establish simple relationships between the underlying layer structure and the phases and phase groups. By measuring the times of all phases and phase groups or stacking the amplitudes of all phases, we can investigate the structure more reliably; however, when interference is so strong that the peaks and troughs do not align with individual phases, the models resulting from using these phases may contain significant uncertainty. In these cases, simple RF waveform fitting constrained by the one-way vertical travel time (the product of wave vertical slowness and layer thickness) or the period of the phase groups associated with the sedimentary layer can resolve the sedimentary structure reliably. Deconvolving the P-wave RFs predicted by the resulting sedimentary model from the original RF can remove the sedimentary waveforms effectively and correct the sediment-induced delays in deeper-layer phases. We demonstrate the effectiveness of our proposed approaches for inverting the structure and removing the sedimentary response using both synthetic and real data.

Editorial Board

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s):

From drought to deluge: Understanding the atmospheric and climatic forces behind the United Arab Emirates' recent flood event

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Farahnaz Fazel-Rastgar, Masoud Rostami, Venkataraman Sivakumar, Bijan Fallah

Physicochemical analysis and source apportionment of PM<sub>1.0</sub> and PM<sub>2.5</sub> in Harbin

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Likun Huang, Zhouyu Guo, Yan Wang, Guangzhi Wang, Dongdong Wang, Jingyi Zhang, Xinyu Feng

Enhanced ground-based GNSS tomography for accurate water vapor retrieval

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Xia Pengfei, Zhang Weikang, Shu Liang, Guo Min

Corrigendum to “Three-dimensional lightning channel structure reconstruction: An efficient matching TOA algorithm for VHF pulses” [J. Atmos. Sol. Terr. Phys. 278 (2026) 106702]

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Yueyang Wang, Yun Li, Shi Qiu, Shuangjiang Du, Zheng Sun, Lihua Shi

Optimized fuzzy logic algorithm for classifying meteorological and non-meteorological echoes in CINRAD/SA data in Poyang Lake region

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Landi Zhong, Haibo Zou, Xiaoyou Long, Jiaxin Wang, Yige Huang

Sequence of space storm effects in ionospheric anomalies and geomagnetic activity

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): T.L. Gulyaeva

Assessment of a simple wave-amplitude approximation for tsunami-generated gravity waves at all levels of viscosity in the thermosphere

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Dave Broutman, Harold K. Knight, James W. Rottman, Stephen D. Eckermann

Urbanization-driven secondary climatic changes: Re-envisioning response of fast growing cities of Northern India

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Koyel Sur, Sarabjit Singh, Vipan Kumar Verma, Brijendra Pateriya

Short-term wind speed combination prediction based on decomposition and reconstruction

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Dezhi Hao

Influence of target spectrum selection in wind spectrum fitting on fatigue damage assessment accuracy for wind turbine blades

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Jiantao Liu, Yibing Liu, Chao Zhou, Qingfeng Gao, Haolin Yin

Three-dimensional lightning channel structure reconstruction: An efficient matching TOA algorithm for VHF pulses

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Yueyang Wang, Yun Li, Shi Qiu, Shuangjiang Du, Zheng Sun, Lihua Shi

Climatological analysis in identification of hotspot regions of pre-monsoon convective conditions for the occurrence of disastrous thunderstorms over West Bengal

Publication date: January 2026

Source: Journal of Atmospheric and Solar-Terrestrial Physics, Volume 278

Author(s): Anup Mahato, A.N.V. Satyanarayana

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