Researchers from China have developed a new 3D-printing process capable of building titanium-alloy rods more than a meter (3.3 feet) tall composed entirely of a single crystal. The new method, described in the team's recently published study in Nature, eliminates some of the constraints associated with conventional crystal-growing methods and opens up new opportunities for technical applications, ranging from reactor components to laser mirrors.

Space Force seeks commercial tech to modernize data networks and software. Battle Management, Command, Control, Communications and Space Intelligence, or BMC3I, is a $21 billion acquisition portfolio that the Space Force is looking to open up to new vendors. Much of the work is classified, but officials say commercial companies will see increasing opportunities to provide technology and services.

The Space Development Agency is exploring new sensor technologies for its next generation of missile-tracking satellites, including capabilities to detect and follow targets throughout their flight. A new industry notice outlines plans for Tranche 4 production contracts and separate demonstrations of advanced satellite payloads.

The U.S. Space Force needs another major spaceport by 2030 to handle rising military and commercial launch demand and is considering government and privately owned sites, the head of Space Systems Command said Oct. 21.

Earth observation operator Marble Imaging, satellite manufacturer Reflex Aerospace, and optical communications specialist Odysseus Space announced a joint mission to deploy space-to-ground laser communications aboard Marble Sat-1. Scheduled for launch in the first quarter of 2027, the spacecraft will utilize optical downlink technology to overcome conventional radio-frequency bottlenecks and accelerate data delivery for European Earth observation.

Earth observation satellite operator Planet Labs PBC successfully launched its Pelican-12 spacecraft aboard SpaceX’s Bandwagon-5 rideshare mission from Cape Canaveral Space Force Station in Florida. The launch represents the company’s 25th satellite deployed to orbit in 2026 across four missions and marks the fifth next-generation Pelican spacecraft launched this year, with ground controllers successfully establishing initial contact and commencing orbital commissioning.

SolidCraft.io is one of those rare open-source tools that actually feels like it was designed for users who got tired of wrestling with FreeCAD’s workbench chaos and Python scripting. The fact that it’s pure Rust, parametric with a clean feature timeline, runs in the browser or app and has a first-class MCP server is wild. Being able to hand an AI (Claude.ai) the same command surface the UI uses is genuinely mind-shattering. @Karnage

When Hubble swings from one galaxy to another, engineers fire no thrusters—Hubble has none. They change the speeds of four internal reaction wheels, making the observatory rotate the opposite way, while magnetic bars push against Earth’s field to bleed off excess momentum: a propellant-free steering system used since 1990. Hubble turns by trading angular momentum with four internal reaction wheels, then uses magnetic torquer bars to unload the momentum those wheels accumulate.

Astronauts on the Moon could shelter from radiation, micrometeoroids and extreme temperatures inside a lava tube, and NASA is sending a suite called GIMLI to scan beneath the Marius Hills Pit to see whether the pit opens into one. Underground caverns could offer lunar explorers their first true shelter, if a buried tunnel system actually exists beneath the volcanic landscape where NASA is about to look.

Researchers from Northwestern Medicine, UT Southwestern, and UT Houston monitored the hearts of 13 astronauts who spent approximately six months aboard the International Space Station. Their findings showed that although spaceflight initially affected heart performance, the astronauts gradually adapted, with intensive daily exercise playing an important role in maintaining their cardiovascular health.

Scientists at the Max Planck Institute for the Science of Light have achieved a breakthrough in quantum physics, developing a way to study individual molecules on a surface with extraordinary precision. For the first time, researchers have demonstrated that molecules attached to a surface can reach the ultimate quantum limit of optical coherence, overcoming a major obstacle that has long restricted molecular quantum research.

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Scientists have discovered that severely bleached corals can make a remarkable comeback simply by touching healthy, genetically identical corals. In laboratory experiments, dying corals regained their color and fully recovered within seven weeks, with as little as five days of contact sometimes enough to start the healing process.

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Space Force plans wider global deployment of satellite jammers. Market survey seeks contractors to maintain a worldwide fleet of at least 32 Meadowlands systems, with support capacity for as many as 56, used to disrupt adversaries communications.

NASA’s Nancy Grace Roman Space Telescope has exceeded expectations after engineers made incredibly tiny adjustments to sharpen its view of the universe. By moving a mirror just one-sixteenth the width of a human hair, the team helped bring its powerful instruments into near-perfect alignment. Roman’s Wide Field Instrument now produces image quality nearly 30% better than predicted, promising exceptionally sharp cosmic surveys.

NASA’s James Webb Space Telescope has revealed that a turbulent world 20 light-years away has a surprisingly orderly weather system, with three recurring atmospheric states driven by temperature changes and shifting clouds. The breakthrough gives scientists a powerful new tool for uncovering weather patterns on distant worlds and understanding the conditions that shape their atmospheres. To investigate SIMP 0136, the researchers analyzed observations collected by NASA's JWST using a mathematical technique called Principal Component Analysis (PCA).

ArcSpace develops electron-beam tools and integrated processes for in-space assembly and manufacturing. The technology targets joining and cutting operations in orbit and on the Moon. This 2U subsystem combines welding and cutting in one compact tool designed for vacuum, radiation, microgravity and extreme temperatures. ArcSpace reports demonstrated processing of multiple aluminum alloys and compatibility with titanium and nickel-based alloys.

Researchers at Stanford have created a powerful new imaging system that reveals the inner workings of living cells with remarkable clarity. By combining two advanced microscopy techniques, the instrument achieves a resolution of approximately 120 nanometers, an unprecedented level of detail for an approach that does not require fluorescent labels. Known as Interferometric Image Scanning Microscopy (iISM), the technology makes it possible to observe multiple cellular structures simultaneously while they move, change, and respond to their surroundings. Scientists can also investigate what happens when cells encounter drugs or disease causing organisms, potentially uncovering biological processes that have been difficult to study.

A POTENTIALLY DANGEROUS SUNSPOT: Big sunspot 4551 has a 'beta-gamma-delta' magnetic field that harbors energy for X-class solar flares. Any explosions today will be geoeffective because the sunspot is directly facing Earth.