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Earlier sources: Satellites
This space thread follows satellites through original research, public projects, and source reports. Read the evidence below to see which developments are represented in SYMTRI’s archive.
SYMTRI organizes observations from public sources into a living map. Connections reflect shared subject matter; they do not establish causation or endorse a source.
Open in the map ↗41 classified signals in the fourteen-day window. These counts include signals awaiting readable evidence.
Earlier sources
Up to ten sources with readable evidence, ordered by their feed timestamp. These archive sources can be older than the live fourteen-day window. This list is a sample, not a measure of total activity. Dates distinguish paper publication, repository creation, model/dataset activity, Hacker News posts, and KEV catalog additions. “First archived” records when SYMTRI first stored the signal.
- arXiv · Published · First archived
SCORAS-MoE: Joint Compression and Resource-Adaptive Deployment of MoE-VLMs in LEO Satellite Networks ↗
Deploying large vision-language models (VLMs) onboard satellites enables onboard data processing and reduces raw data downlink. However, onboard inference faces two resource challenges. Limited onboard memory and energy require model compression and distributed deployment. Dynamic resource availability requires fast deployment decisions as illumination, battery levels, and communication conditions change. We present SCORAS-MoE, a joint compression and deployment framework for mixture-of-experts (MoE) VLMs in low Earth orbit (LEO) satellite networks. To address limited resources, SCORAS-MoE mea…
- arXiv · Published · First archived
On the Lack of Periodicity of Walker Satellite Constellation Routing Tables ↗
In a referential that rotates with Earth, the dynamics of the configurations of satellites in a Delta Walker constellation can be analyzed as a dynamical system as a function of a translation on the torus. This paper extends this type of analysis to routing over a Walker constellation, leveraging fixed ground relays. It considers any deterministic, time-invariant routing rule on such a collection of satellites and relays. The main object of interest is the routing table associated with this rule, which specifies, for all source-destination pairs, a route made of satellites and relays between t…
- OpenAlex · Published · First archived
Identification of Critical Links in Low Earth Orbit Satellite Networks Based on Temporal Connectivity ↗
Low Earth orbit (LEO) satellite networks exhibit highly dynamic topologies, making it challenging to accurately identify critical inter-satellite links using conventional static graph methods. Existing approaches predominantly rely on delay or betweenness centrality as evaluation criteria and fail to account for temporal connectivity as a fundamental prerequisite for communication. This paper proposes the Evaluation of Temporal-Aware Path Connectivity (eTAPC), a method based on temporal connectivity for identifying critical links in LEO satellite networks. An event-driven slot partitioning str…
- arXiv · Published · First archived
The Dense, Rocky Core of Haumea Revealed by Satellite Dynamics ↗
The icy dwarf planets in the outer solar system are among the most enigmatic bodies known, showing activity ranging from atmospheric resurfacing to possible cryovolcanism. Yet the study of their interiors remains largely theoretical, with few empirical measurements to guide our understanding. The orbits of their moons offer a way to break this deadlock, providing a direct probe of dwarf planet interiors. Here we present a detailed investigation of Haumea's interior derived from the motion of its satellite system. Fitting a new dynamical model to two decades of precise Hubble Space Telescope as…
- Hacker News · Posted on Hacker News · First archived
Defeating Satellite Spoofing with Galileo's Encryption ↗
Hacker News discussion.
- Hacker News · Posted on Hacker News · First archived
Israel Keeps Expanding into Gaza Despite Cease-Fire, Satellite Images Show ↗
Hacker News discussion.
- Europe PMC · Published · First archived
Biological significance of centromeric satellite asymmetry in female meiosis. ↗
Centromeres ensure faithful chromosome segregation, yet the satellite arrays typically underlying these loci exhibit remarkable variation in sequence, organization, and size across individuals and species. Recent advances in long-read genome assemblies and experimental model systems have begun to reveal that this diversity is not simply tolerated but can directly influence centromere function during female meiosis. Asymmetry between centromeric satellite arrays of homologous chromosomes can lead to asymmetries in kinetochore proteins and spindle interactions, biased chromosome orientation on t
- arXiv · Published · First archived
ASTRA: ADMM-Accelerated Topology Reconfiguration for Dynamic Satellite Constellations ↗
Dynamic topology reconfiguration is central to the reliability and efficiency of large satellite constellations, yet many existing approaches rely on idealized assumptions such as full constellation deployment or uniform orbital spacing. We present Adaptive Satellite Topology via Regret-Aware learning (ASTRA), a theoretically-grounded framework for dynamic satellite topology reconfiguration that builds on an online learning formulation and makes it computationally practical. ASTRA combines an ADMM-based offline solver with efficient online updates for both online gradient descent and online co…
- Hacker News · Posted on Hacker News · First archived
New Satellite Engine Could Use Earth's Atmosphere to Stay in Orbit Indefinitely ↗
Hacker News discussion.
- Hacker News · Posted on Hacker News · First archived
Meteor M2-4: Receiving Weather Satellite Images from My Garden in San Francisco ↗
Hacker News discussion.
Live window recorded . This is the ingestion observation time, not the publication or discovery date of each source.
How to assess evidence about Satellites
Check each original source for its methods, release status, limitations, and supporting data. A repository announcement, a preprint, and a published study provide different kinds of evidence. SYMTRI’s subject classification helps discovery; it does not independently validate the source’s claims.
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