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The intensity ratio of emissions in 337 and 391 nm channels in high-latitude upper atmosphere

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): A.S. Kirillov, P.A. Klimov, V.D. Nikolaeva, K.D. Shchelkanov, B.V. Kozelov, A.A. Belov

Quiet-Solar-Low (QSL) GNSS-based VTEC climatology over Oukaïmeden (Morocco) across the solar cycle 24–25 transition

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Mohamed Kaab, Abdelkarim Boskri, Zouhair Benkhaldoun, Mashhoor A. Al-Wardat, Amal Loutfi, Shuli Song, Massinissa Hadjara

Ionospheric irregularities over south China associated with storm-induced EPBs during two geomagnetic storms of 4 November 2021 and 13 March 2022

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Kezhi Huang, Tao Yu, Kun Deng, Shu Wang, Xiangxiang Yan

Enhancing deep learning-based solar irradiance forecasting using adaptive feature weighting and sky images

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Dongsheng Cai, Shuang Luo, Zhihui Yang, Chiagoziem C. Ukwuoma

Finite-time non-fragile performance-constrained control for free-flying flexible-joint space robots with actuator saturation

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Dingfeng Gao, Zhicai Dong, Jianheng Mao, Liaoxue Liu, Yu Guo

Collision of mega-constellations: analysis of the impact of the breakup debris cloud

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Pu Huang, Yingkai Cai, Zhengqing Fang, Zhaokui Wang

Ring current characteristics of G5-level geomagnetic storms

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Ayushi Srivastava, Bharati Kakad, Chougule Prathmesh, Amar Kakad

Assessment and validation of two prediction models of MUF in China

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Qiao Yu, Tianyu Li, Jian Wang, Hongmei Zhao, Yafei Shi, Cheng Yang, Tong Xu, Yanli Hu, Jieqing Fan

Achieving μK-level ultra-low-frequency temperature noise for the TianQin satellite temperature control system via a common-source dual-channel differential method

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Chunwang Niu, Yanwei Ding

Direct optimal low-thrust gravity-assist trajectory design via sequential convex programming with a zero-launch-energy odyssey to Neptune

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Hailiao Wang, Guangyou Geng, Jizhong Liu, Ming Xu, Xiaoyi Wang

Airglow imager observation of equatorial-plasma-irregularities in the Indian low/sub-low latitudes getting pinched-off and mergers during after/before midnights

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): T.K. Ramkumar, M.G. Keerthana, G.K. Prashant, Suparba Goswami, Keerthana Ramesh, Shravani Ahire

Optimization of lunar communication and navigation constellations via preprocessing orbit data of three-body problem

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Yuchen He, Shuhao Cui, Yue Wang, Siliang Yang, Ruikang Zhang, Haichao Gui

Ionospheric disturbances observed over Japanese and Indian region following the Tonga islands volcanic eruption on 15 January 2022

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Arti Bhardwaj, Qadeer Ahmed, Anshul Singh, Ankit Gupta, Aastha Rawat, Puja Goel, Geeta Vichare, Arun Kumar Upadhayaya

Methodology for <em>a priori</em> stability analysis of a distributed orbital sunshade system

Publication date: 1 August 2026

Source: Advances in Space Research, Volume 78, Issue 3

Author(s): Anatolii Alpatov, Erik Lapkhanov

Four ways wildfires generate tornadoes, lightning and other extreme weather, sometimes miles from the flames

Phys.org: Earth science - Sat, 08/01/2026 - 18:00
Thick smoke from massive wildfires has been spreading in North America and Europe once again in 2026. The health impacts of breathing this particle-filled air are becoming well known, but wildfires' influence on the weather is less widely recognized.

Pacific cloud brightening could weaken El Nino, but models reveal risks for Europe and Asia

Phys.org: Earth science - Sat, 08/01/2026 - 13:50
A brewing "super" El Nino cycle is poised to unleash heat waves, floods and drought worldwide, with the effects amplified by long-term human-caused climate change.

Ancient diamond preserves evidence of water-bearing mineral deep in Earth's mantle

Phys.org: Earth science - Sat, 08/01/2026 - 11:20
A team of Brazilian researchers discovered the first direct evidence that goethite—the mineral responsible for the brown color of soils—can withstand extreme pressures and temperatures all the way to the planet's interior inside a diamond just 3 millimeters (0.1 inch) long, within a microscopic impurity. Goethite forms in soil and on the ocean floor from iron-rich minerals in the presence of water. It incorporates some of these water molecules into its mineral structure. The study suggests that goethite may transport and release water into a region known as the lower mantle.

Experts survey the glacier ice on Mount Ararat for the first time

Phys.org: Earth science - Fri, 07/31/2026 - 18:20
Facing wind and cold, with only half as much oxygen to breathe as in the valley, a German-Turkish research team surveyed the glacier on Mount Ararat in eastern Turkey for the first time in July, at more than 5,000 meters (16,400 feet) above sea level. For two weeks, the team explored the ice field, which until then had been a blank page for researchers. Their goal was to find out whether the ice on Turkey's highest mountain preserves a unique archive of climate and cultural history.

Ancient Irish volcano offers new clues about the development of its modern-day, active 'brothers and sisters'

Phys.org: Earth science - Fri, 07/31/2026 - 17:00
An international team of volcanologists working on Carlingford Mountain has found that liquid "magma chambers" do not always exist beneath volcanoes. The team instead demonstrated that magma "plumbing systems" beneath Earth's surface can fluctuate between solid- and liquid-dominated states, providing an improved view of how active volcanoes evolve through time.

New method flags hurricane rapid intensification up to five days ahead

Phys.org: Earth science - Fri, 07/31/2026 - 16:00
The rapid intensification of a hurricane ranks among the most dangerous weather events on Earth. Storms such as Hurricane Michael, which crashed ashore in the Florida Panhandle with winds of 160 mph (about 257 km/h), and Hurricane Otis, the costliest hurricane to strike Mexico's Pacific coast, caught communities unawares when they intensified at a rate that computer models failed to anticipate.

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