small satellites

The Pentagon is advancing plans for satellite constellations designed to track targets, including hypersonic missiles, from orbit. Aviation Week reports the programs are moving from concept toward deployment, with layered networks of small satellites in low Earth orbit intended to provide persistent tracking and targeting data for missile defense.

NASA has launched a pair of small satellites designed to advance space science, test new technologies, and refine orbital operations. The agency says the SmallSats will demonstrate capabilities that could support future missions, including improved maneuvering and communications in orbit. The launch marks another step in NASA's growing use of compact, lower-cost spacecraft to complement larger missions and expand access to space research.

Portuguese aerospace firm Omnidea has acquired Orbex, the British launch startup that ceased operations after struggling to develop its Prime rocket for launches from Scotland's Spaceport Sutherland. The deal hands Orbex's assets and technology to a new owner, and industry observers are weighing what the takeover means for the UK's ambitions to build a domestic small-satellite launch industry.

SpaceX has launched its Transporter-18 rideshare mission, sending a large batch of small satellites into orbit on a single Falcon 9 flight. The Transporter missions are SpaceX's recurring dedicated launches for small satellite operators, offering shared rides to orbit at lower cost. Further details on the payloads and launch outcome were not immediately available.

SpaceX is preparing its Transporter-18 rideshare mission, carrying a varied payload that includes prototypes for orbital AI datacenters and demonstrators for energy redirection technology, according to Spaceflight Now's live coverage. The flight highlights growing commercial interest in testing unconventional space infrastructure concepts alongside more traditional small satellite deployments.

Nautilus has published a photographic retrospective of Sputnik 1, the Soviet satellite launched on October 4, 1957, roughly 69 years ago. The piece revisits the polished metal sphere whose beeping radio signals shocked the world and triggered the space race. The feature combines archival imagery with reflections on how a small satellite reshaped science, politics and technology.

Military space systems are shrinking, and the smaller spacecraft get, the tougher the engineering problems become. A new analysis examines how electronics designers balance size, weight, power and radiation hardening when building for defense missions, where compact satellites must survive harsh physics without the bulk of traditional shielding. The piece argues these tradeoffs now define what military space capabilities are possible.

SpaceX is set to launch a satellite carrying Google's AI technology into orbit, along with 129 other payloads, in a ride-sharing mission today. The flight highlights the growing role of commercial space launches in deploying artificial intelligence hardware and small satellites. Spectators can watch the liftoff live as the Falcon rocket carries the diverse cargo stack to orbit.

Google has sent AI chips into space aboard SpaceX's Transporter-18 rideshare mission, extending its effort to run artificial intelligence workloads off Earth. The launch pairs Google's tensor processing units with SpaceX's small-satellite rideshare program, and the move is drawing attention as tech companies explore orbital data centers and space-based computing to reduce terrestrial energy demands. Details on the chips' in-orbit testing and performance have not yet been released.

Investopedia is examining how large a share of an investment portfolio should be allocated to thematic ETFs — funds built around trends like artificial intelligence, clean energy or healthcare innovation. The guidance being discussed is that these focused, often volatile funds work best as a small satellite allocation, with advisors commonly suggesting a limited percentage of overall holdings rather than a core position, balanced against broad diversified index funds.