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The space race is coming for pharma: Why drug development is heading to lower Earth orbit
The highly anticipated SpaceX mega-IPO is part of a space frenzy that is moving beyond satellite connectivity, launch vehicles, and aerospace defense to the pharmaceutical sector. A growing number of companies are heading to lower Earth orbit to make medicines in microgravity. The range of commercial opportunities is expanding as foundational aerospace industries set the necessary infrastructure.
Tracking the Effective Surface Area of Non-Convex Satellites
arXiv:2606.09439v1 Announce Type: new Abstract: This paper presents a novel framework to track the effective surface area of non-convex satellites, enabling the use of aerodynamic drag in low Earth orbit for orbital control. The proposed framework enables the satellite to track the effective surface area while simultaneously performing other maneuvers. We introduce this framework through a backstepping control algorithm, and exemplify its advantages with an extension, to simultaneously...
Artemis III crew revealed: NASA announces astronauts for 'one of history's most complex missions'
Artemis III crew revealed: NASA announces astronauts for 'one of history's most complex missions' NASA's Artemis III crew has been revealed. The astronauts will launch into low Earth orbit next year to test docking with commercial lunar landers being developed by SpaceX and Blue Origin. NASA has named the crew for its upcoming Artemis III mission, which the space agency says will be one of the most complex missions in history.
Collaborative Space Object Detection with Multi-Satellite Viewpoints in LEO Constellations
Announce Type: new Abstract: With the growing number of satellites in low Earth orbit (LEO) constellations, the near-Earth space environment has become increasingly congested, making space object detection (SOD) a pressing challenge for space safety and sustainability. To mitigate collision risks and ensure the continuity of space operations, SOD systems must deliver fast and accurate detection under stringent onboard constraints. In this paper, we investigate the potential of...
Rotatable Antenna-Enabled Satellite Communication: Joint Design of Boresight Alignment and Beam Tracking
new Abstract: Low Earth orbit (LEO) satellite links experience rapid angular variation due to high orbital velocities, which causes severe beam misalignment and array gain degradation under conventional fixed-antenna architectures. In this letter, we propose a rotatable antenna (RA)-enabled LEO communication framework, where RA arrays are deployed at both the satellite and the ground node (GN) to exploit antenna boresight reconfiguration as an additional spatial degree-of-freedom (DoF) for...
CLIF: Cross-layer LEO-ISL Fingerprinting for Physical and Network Attack Detection in Dense LEO Constellations
arXiv:2606.04901v2 Announce Type: replace Abstract: Low-Earth Orbit (LEO) mega-constellations such as Starlink by SpaceX and Kuiper by Amazon rely on optical Inter-Satellite Links (ISLs) for autonomous mesh routing to provide low-latency telecommunication, Internet of Things (IoT), and security services globally. As commercial operators and governments deploy increasingly dense constellations and form multi-operator peering coalitions, ISL integrity becomes critical to both commercial...
CLIF: Cross-layer LEO-ISL Fingerprinting for Physical and Network Attack Detection in Dense LEO Constellations
new Abstract: Low-Earth Orbit (LEO) mega-constellations such as Starlink by SpaceX and Kuiper by Amazon rely on optical Inter-Satellite Links (ISLs) for autonomous mesh routing to provide low-latency telecommunication, Internet of Things (IoT), and security services globally. As commercial operators and governments deploy increasingly dense constellations and form multi-operator peering coalitions, ISL integrity becomes critical to both commercial availability and national security. However,...
SpaceX launches back-to-back Starlink missions from both coasts 19 hours apart (photos)
SpaceX launches back-to-back Starlink missions from both coasts 19 hours apart (photos) More than 50 new Starlink satellites are now in orbit after launches from California and Florida. SpaceX now has 53 more Starlink satellites in low Earth orbit after two successful launches in less than 19 hours from opposite U.S. coasts. A pair of Falcon 9 rockets lifted off within hours of each other on missions to expand the private spaceflight company's broadband internet relay megaconstellation.
Rocket launches and reentries harm Earth's ozone layer
Rocket launches and reentries harm Earth's ozone layer Gaby Clark Scientific Editor Andrew Zinin Lead Editor The space industry is surging. In coming years, nearly 10,000 spacecraft are slated to launch into low-Earth orbit for a variety of purposes, such as global surveillance, space tourism, and satellite "megaconstellations" providing internet service. Rocket engine exhaust, as well as the burnup of inactive satellites and rocket parts reentering Earth's atmosphere, releases a suite of...
On its 40th anniversary, we reassess 1986's SpaceCamp
Forty years ago, the future seemed just around the corner—and the vehicle that was going to take us there was NASA's Space Shuttle. Originally envisioned as part of a larger integrated space transportation system, the shuttle was billed as a fully reusable vehicle, totally unlike the one-and-done capsules of the fading Apollo era, capable of making monthly (and perhaps even weekly) ferry flights to low Earth orbit. The shuttle, it was hoped, would transform human space flight from...