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The Second International Conference on Space Science and Technology opens grandly in Suzhou!

The Second International Conference on Space Science and Technology was held in Suzhou, bringing together over 300 experts from around the world to discuss cutting-edge research and innovative applications in the aerospace field. The conference focused on key technologies and explored solutions to global aerospace research challenges.

PolyU research reveals sharp depletion in soil moisture, driving land water to flow into the oceans and contributing to a rise in sea levels

A PolyU research team found a rapid decline in global soil moisture over the past 40 years, resulting in significant water loss and sea level rise. The study suggests that precipitation deficits, global warming, and changing rainfall patterns are key factors behind this depletion.

Introducing 'Between a Rocket & a Hard Space': the ISS National Lab’s new podcast exploring the future of space innovation

The ISS National Lab's new podcast, 'Between a Rocket & a Hard Space', offers exclusive insights from scientists, engineers, and visionaries on the future of space research. The first episode explores the groundbreaking science happening on the International Space Station, including its impact on medicine, technology, and industry.

Politecnico di Milano and Georgia Tech unveil new scenarios for asteroid deflection

Researchers from Politecnico di Milano and Georgia Tech analyzed NASA's DART mission to asteroid Dimorphos, revealing a viable mechanism for ejecta evolution and understanding the impact of an asteroid's shape on deflection. The studies suggest that sending multiple smaller impactors can increase the asteroid push while reducing costs.

SourcePolitecnico di Milano·JournalNature Communications·TypeObservational study·DateFeb 20, 2025

Can ocean-floor mining oversights help us regulate space debris and mining on the Moon?

The regulation of ocean-floor mining may hold key lessons for the management of space debris and mining on the Moon. International discussions on space traffic management and active debris control could help prevent space debris from orbiting the Moon and Mars. Effective regulations are crucial to ensuring sustainable space activities.

SourceFrontiers·JournalFrontiers in Space Technologies·TypeCommentary/editorial·DateFeb 3, 2025

The pressure to explore

Caltech researchers have developed a platform to characterize ultrathin membranes that could be used in lightsails for interstellar space travel. The team's experiments mark the first step towards achieving this audacious goal, which aims to reach ultrafast speeds and explore distant star systems.

SourceCalifornia Institute of Technology·JournalNature Photonics·DateJan 30, 2025

A less ‘clumpy,’ more complex universe?

Combining data from two major surveys of the universe's evolutionary history reveals a small discrepancy between expected clumpiness and observed matter distribution. This deviation could suggest unaccounted-for physics influencing cosmic structure formation, such as dark energy.

SourceUniversity of Pennsylvania·JournalJournal of Cosmology and Astroparticle Physics·TypeObservational study·DateJan 29, 2025

A Sustainable Development Goal for space?

Experts propose an 18th SDG to protect Earth's orbit from accumulating debris, citing the need for global consensus and mechanisms for enforcement. The proposal builds on earlier calls for a legally-binding treaty to safeguard the planet's orbital environment.

SourceUniversity of Plymouth·JournalOne Earth·TypeSystematic review·DateJan 9, 2025

Simple shift could make low Earth orbit satellites high capacity

Researchers developed a system to effectively split transmissions from a single antenna array into multiple beams without additional hardware, allowing satellites to overcome the one-to-one user ratio. This enables significant reductions in cost and power consumption, potentially leading to fewer satellites, smaller satellites, or both.

SourcePrinceton University, Engineering School·JournalIEEE Transactions on Signal Processing·TypeComputational simulation/modeling·DateSep 13, 2024

Noncooperative target finite-time surrounding control of spacecraft formation

The article proposes a novel finite-time ESO for noncooperative target surrounding control in spacecraft formation. A new manifold is defined and an observer is used to estimate the unknown dynamics. The state equation of the proposed FTESO is obtained, which enables the controller to fulfill the surrounding mission rapidly.

SourceBeijing Institute of Technology Press Co., Ltd·JournalSpace: Science & Technology·DateAug 28, 2024

Near-term NASA Mars and lunar in situ propellant production: complexity versus simplicity

Lunar ISPP focuses on carbothermal process to produce oxygen from regolith, while NASA near-term plans rely on H2 and O2 propellants. For Mars, electrolysis of CO2 is considered simplest method, with water-based approach preferred for practicality. Power requirements for both lunar and Martian ISPPs pose significant challenges, with so...

SourceBeijing Institute of Technology Press Co., Ltd·JournalSpace: Science & Technology·DateAug 21, 2024

An active multi-beam antenna design method and its application for the future 6G satellite network

Researchers develop a new active multi-beam antenna design method that optimizes gain, sidelobe level, and beam direction using AI-powered surrogate models. The method solves complex nonlinear optimization problems, allowing for the creation of high-performance antennas with reduced complexity.

SourceBeijing Institute of Technology Press Co., Ltd·JournalSpace: Science & Technology·DateAug 21, 2024

Configuration design method of mega constellation for low earth orbit observation

The design method proposes a novel approach to configuring mega constellations in Low Earth Orbit (LEO) observation. By categorizing satellites into basic and accompanying satellites, the authors optimize their orbits to minimize differences between ascending and descending nodes of basic satellites. Additionally, they utilize the Nond...

SourceBeijing Institute of Technology Press Co., Ltd·JournalSpace: Science & Technology·DateAug 5, 2024

Existence of lunar lava tube cave demonstrated

A team of international scientists has demonstrated the existence of a lunar lava tube cave, with radar reflections indicating an underground conduit in Mare Tranquillitatis. This discovery provides crucial evidence for safe site selection on the Moon and supports future exploration missions.

SourceUniversità di Trento·JournalNature Astronomy·TypeData/statistical analysis·DateJul 15, 2024

First time brown dwarfs seen so near host stars

For the first time, a team of French scientists has observed brown dwarfs orbiting very close to bright stars using precise astronomical imaging. The findings provide new insights into the formation of these unusual celestial objects and massive exoplanets.

SourceCNRS·JournalAstronomy and Astrophysics·DateJun 20, 2024

Tracking undetectable space junk

Researchers propose a new method to track small pieces of space debris by detecting electric signals emitted when they collide. This approach could help protect satellites and spacecraft from damage, as tiny pieces of debris can cause significant harm at high orbital speeds.