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Earlier sources: Space
Space research and engineering study the universe and build the systems used to reach and observe it. Follow astronomy, spacecraft, launch systems, satellites, exploration, and Earth observation.
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 ↗520 classified signals in the fourteen-day window. Recent momentum: steady. 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.
- Hacker News · Posted on Hacker News · First archived
Google's Project Suncatcher prototype satellite is in orbit ↗
Hacker News discussion.
- OpenAlex · Published · First archived
A multifunctional anti-reflection coating on coverglass for III-V solar cells for space applications ↗
Solar photovoltaic (PV) cells are used to power satellites in space, and incorporate ultra-thin (∼150 μm), radiation-tolerant coverglass sheets to provide protection and mechanical support. Optical coatings can be applied to this coverglass surface, such as anti-reflection coatings to reduce reflection losses, typically a single layer of MgF 2 , which has limitations such as poor durability and lack of thermal management. Optical coatings can also contribute to passive cooling, reducing cell operating temperatures in the space environment where large temperature swings are present. This work d…
- OpenAlex · Published · First archived
Evidence for inefficient dust production in a massive, metal-rich galaxy at z=7.13 uncovered by JWST and ALMA ↗
Recent observations have revealed a remarkably rapid buildup of cosmic dust in the interstellar medium (ISM) of high redshift galaxies, with complex dust compositions and large abundances already appearing at redshifts z > 6 . Here we present a comprehensive, joint analysis of observations taken with the James Webb Space Telescope (JWST) and the Atacama Large Millimetre/submillimetre Array (ALMA) of the highly magnified ( μ = 9.6 ), dusty normal galaxy, A1689-zD1 at z = 7.13 . We perform detailed spectro-photometric modeling of the rest-frame UV to far-infrared spectral energy distribution (SE…
- OpenAlex · Published · First archived
Port-Agent: Structured Multimodal Reasoning for Port Disruption Analysis Using AIS, Satellite Imagery, and News ↗
Textual accounts establish essential context for port disruptions but can bias large language model synthesis before independent observations are examined. We present Port Agent, a remote-sensing agent that aligns Automatic Identification System (AIS) trajectories, Sentinel-2 vessel detections, and documents while retaining acquisition time, footprint, processing, and uncertainty. The evaluation follows the evidence chain from physical observation to agent synthesis across 12 views of 11 U.S. event-or-control groups, 24 quality-screened scenes, and 145,570,911 AIS positions. AIS first resolved…
- OpenAlex · Published · First archived
Visual Impression of Urban Space: A Systematic Review of Empirical Findings, Challenges, and Opportunities ↗
Studies of visual impression seek to link the visual features of urban spaces with users’ subjective experiences (e.g., perceiving and describing a space as “inviting”). By revealing the relationships between visual characteristics and users’ experiences, such studies can inform the design of urban environments. However, this emerging field remains fragmented and would benefit from comprehensive syntheses. Here, we report on a PRISMA-based systematic review of empirical studies on visual impression in urban settings and organize them according to (1) purpose, (2) method, and (3) findings. The…
- OpenAlex · Published · First archived
Hour-scale response of low-Earth-orbit satellite altitude to extreme geomagnetic storms revealed by the NinjaSat CubeSat during the 2024 solar maximum ↗
Abstract Extreme geomagnetic storms accelerate low-Earth-orbit satellite decay by inflating the thermosphere, yet the hour-scale pathway from solar-wind energy to atmospheric heating is poorly understood. Using the GNSS receiver of the NinjaSat CubeSat ( $$\sim 500$$ km, $$97^\circ $$ sun-synchronous), we tracked orbital altitude through solar-maximum 2024 and cross-correlated the storm-time altitude-change rate with geomagnetic indices during the two largest storms of the year. The EUV-corrected residual correlates with the polar-cap (PC) index at $$r\gtrsim 0.8$$ , PC leading or coincident w…
- arXiv · Published · First archived
Post-Training Quantization of Autoregressive Weather Models ↗
Advancements in high-resolution numerical weather prediction (NWP) and data assimilation (DA) have shaped the developments in deep learning (DL) architectures emulating atmospheric dynamics. Emulators for weather forecasting exhibit forecast quality comparable to physics based models at forecast horizon scaling from few days to subseasonal time scales. The emulators are driven by hardware-accelerated matrix multiplication in autoregressive inferences, significantly reducing the computation time and resources required for NWP. Optimization of the matrix multiplication processes in GPU architect…
- NASA · Source date · First archived
NASA Awards Enterprise Logistics Support Services Agreements ↗
Credit: NASA Editor’s Note: This release was updated on Oct. 2, 2026, to clarify company names. NASA selected 16 companies to provide Enterprise Logistics Support Services under new agreements that will standardize requirements, improve reporting, and streamline the management of costs and resources. The $1.4 billion blanket purchase agreements will support equipment and property management, transportation, disposal, product support, flight hardware support operations, equipment maintenance and repair, export control, move operations, flight hardware, and other material purchases. Under the Ge…
- Hacker News · Posted on Hacker News · First archived
Cold War spy satellite named after Farrah Fawcett just exploded in space ↗
Hacker News discussion.
- arXiv · Published · First archived
TOI-1408: the limb darkening models, photometric and Doppler noises, and the exoplanetary system ↗
We perform a self-consistent analysis of Doppler and photometric TESS and ground-based transit observations available for TOI-1408, known to host a system with two planets orbiting near 2:1 mean-motion commensurability and a distant companion. In general we confirm its orbital configuration derived in previous studies, however we found that the likelihood function contains multiple local maxima spread over a wider parametric domain, thus making some model uncertainties significantly larger than deemed before. In particular, the planet b radius still appears poorly constrained (from $\sim 1.2$~…
Live window recorded . This is the ingestion observation time, not the publication or discovery date of each source.
How to assess evidence about Space
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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