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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 ↗519 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
The large robotic arm on the International Space Station has stopped working ↗
Hacker News discussion.
- NASA · Source date · First archived
Meet NASA’s Artemis II Crew During Houston Public Event ↗
The Artemis II crew (clockwise from left) Mission Specialist Christina Koch, Mission Specialist Jeremy Hansen, Commander Reid Wiseman, and Pilot Victor Glover pause for a group photo with their zero gravity indicator “Rise,” inside the Orion spacecraft during their nearly 10-day mission around the Moon and back. Credit: NASA Editor’s Note: This advisory was updated on Sept. 28, 2026, with ticketing information for the public. The four astronauts of NASA’s Artemis II mission will participate in an event hosted by industry and community partners at the University of Houston to discuss their miss…
- arXiv · Published · First archived
The abundance and emission of PAHs from the local to early Universe ↗
We present the first large-volume cosmological simulation of galaxy evolution with a model for the abundance and luminous emission of Polycyclic Aromatic Hydrocarbons (PAHs) across a wide range of cosmic time ($0 < z \lesssim 6$). The simulation is built on a semi-analytic model (SAM) that includes a treatment of dust size distribution, with PAHs being identified with the smallest carbonaceous grains ($< 15$ A) residing in the diffuse ISM of galaxies. PAH emission is computed by post-processing the simulation output with the radiative transfer code GRASIL. In our model, where stars only inject…
- NASA · Source date · First archived
What You Need to Know About NASA’s SpaceX Crew-13 Mission ↗
The SpaceX Crew-13 members pose for a portrait in their pressure suits during a preflight training session at the company’s headquarters in Hawthorne, California. From left are, Roscosmos cosmonaut Sergey Teteryatnikov, NASA astronauts Jessica Watkins and Luke Delaney, and CSA (Canadian Space Agency) astronaut Joshua Kutryk. SpaceX Four crew members are set to launch to the International Space Station as part of NASA’s SpaceX Crew-13 mission to perform research, technology demonstrations, and maintenance aboard the orbiting laboratory. NASA astronauts Jessica Watkins and Luke Delaney will supp…
- Hacker News · Posted on Hacker News · First archived
FY2025 NASA Planetary Research and Analysis Funding Cut by More Than 50% ↗
Hacker News discussion.
- arXiv · Published · First archived
Refactoring the SIXTE simulator: Towards a more modular code base ↗
The SIXTE (SImulation of X-ray TElescopes) software is a general end-to-end simulation toolkit for X-ray observations, covering the full observation process from source photon generation to detector readout and the production of high-level output files. It is the official simulator for existing and future X-ray missions, such as \textit{eROSITA}, \textit{NewAthena}, \textit{THESEUS} and \textit{AXIS}. Originally being designed as a simulator for \textit{eROSITA}, the addition of new instrument and telescope types over several years has made the original code base increasingly difficult to main…
- arXiv · Published · First archived
Source--Line Associations in JWST/NIRSpec Dense-Shutter Spectroscopy ↗
We demonstrate the feasibility of source--line association in JWST/NIRSpec dense-shutter spectroscopy, with $\sim$2000 sources observed simultaneously per pointing regardless of spectral overlap. While JWST wide-field slitless spectroscopy (WFSS) can disentangle overlapping spectra using two grisms with perpendicular dispersion directions, NIRSpec can achieve this using gratings with different dispersions. Compared with WFSS, NIRSpec dense-shutter spectroscopy offers substantially higher sensitivity and broader wavelength coverage. We develop a Bayesian framework that combines cross-dispersion…
- Hacker News · Posted on Hacker News · First archived
Defeating Satellite Spoofing with Galileo's Encryption ↗
Hacker News discussion.
- NASA · Source date · First archived
Space Station View of Earth at Night ↗
NASA/Jessica Meir This nighttime view of the United States, dotted with city lights looking toward New York City (center), was taken at approximately 3:40 a.m. local time on Sept. 8, 2026, from the International Space Station as it orbited 259 miles above Earth. Image credit: NASA/Jessica Meir
- NASA · Source date · First archived
NASA ORBIT Challenge 2027 ↗
1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) The NASA ORBIT (Opportunities in Research, Business, Innovation, and Technology for the Workforce) Challenge invites university and community college students nationwide to work with real NASA intellectual property and mission challenges. Choose your path: develop commercial applications of NASA patents that solve problems here on Earth (ORBIT Earth), or design next-generation technologies for space exploration (ORBIT Space). The most ambitious teams can pursue both through the optional Integration Bonus. Award: Up…
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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