Research

Astral treats autonomous drones as a systems problem: perception, geometry, planning, safety, simulation fidelity, and honest evaluation. These papers and notes are the scientific backbone behind our open software, datasets, and benchmarks.

Yonder: A 4.65M-Frame Drone Navigation Dataset and the Cross-Simulator Generalization Gap

NeurIPS 2026 Datasets & Benchmarks track (submission)

Introduces Yonder, a multi-million-frame drone-perspective indoor dataset with rich sensing, and shows why offline detection gains can fail to translate to closed-loop navigation when training and evaluation simulators disagree geometrically.

Closing the Metric Gap: From Diagnosis to Solution in Vision-Language Drone Navigation

Technical report

Large-scale closed-loop benchmark across many VLMs, decomposing failures into semantic understanding versus metric spatial grounding, and a modular architecture that closes the gap on operational commands while prioritizing collision-free flight.

Engineering the Separation Principle: From Modular Architecture to Deployable Drone Navigation

Technical report

An eighteen-iteration engineering log: improving a modular autonomy stack in aggregate, scaling detector fine-tuning with large synthetic data, diagnosing a cross-simulator localization gap, and characterizing exploration and planning as the next bottlenecks.

Scaling the Separation Principle: Sensing Requirements for 1000-Drone Swarms in Urban and Natural Environments

Technical report

Controlled swarm simulations up to 1,000 agents comparing sensing stacks and coordination architectures, with a focus on when ultra-wideband ranging becomes necessary as fleet scale and environment difficulty increase.

Gemma 4 E2B as an End-to-End Drone Navigation Controller: A Pilot Trial in the 25-VLM Lineup

Technical note

Adds Gemma 4 to the same Isaac Sim closed-loop benchmark and compares end-to-end goal prediction against modular deployment of the same weights as a semantic target selector, illustrating the leverage of the separation principle.