Results 71 to 80 of about 6,611 (148)

Designing Beyond Current Conceptualizations of Spaceflight Experiences [PDF]

arXiv
The potential future democratization of spaceflight reveals a need for design of experiences that extend beyond our current conceptualization of spaceflight. Research on career astronauts indicates that transformative experiences occur during spaceflight despite the physiological and psychological stressors involved.
arxiv  

Machine learning and evolutionary techniques in interplanetary trajectory design [PDF]

arXiv, 2018
After providing a brief historical overview on the synergies between artificial intelligence research, in the areas of evolutionary computations and machine learning, and the optimal design of interplanetary trajectories, we propose and study the use of deep artificial neural networks to represent, on-board, the optimal guidance profile of an ...
arxiv  

Space radiation health program plan [PDF]

The Space Radiation Health Program intends to establish the scientific basis for the radiation protection of humans engaged in the exploration of space, with particular emphasis on the establishment of a firm knowledge base to support cancer risk ...

core   +1 more source

Unveiling Parkinson's Disease-like Changes Triggered by Spaceflight [PDF]

arXiv
A meta-analysis of spaceflight data from both mouse and human flights reveals a striking overlap with Parkinson's disease (PD). Parallels include: changes in gait, loss of dopamine, sustained changes in the basal ganglia, loss of tyrosine hydroxylase in the substantia nigra, and systemic mitochondrial dysfunction.
arxiv  

Scientific publications of the bioscience programs division. Volume 5 - Planetary quarantine [PDF]

Bibliography and indexes on planetary ...
Hong, F., Watson, M. S.
core   +1 more source

Limits and Signatures of Relativistic Spaceflight [PDF]

arXiv, 2015
While special relativity imposes an absolute speed limit at the speed of light, our Universe is not empty Minkowski spacetime. The constituents that fill the interstellar/intergalactic vacuum, including the cosmic microwave background photons, impose a lower speed limit on any object travelling at relativistic velocities. Scattering of cosmic microwave
arxiv  

Origins of NASA names [PDF]

Names are selected for NASA spaceflight projects and programs from various sources. Some have their foundations in mythology and astrology or legend and folklore.
Karegeannes, C. E., Wells, H. T., Whiteley, S. H.   +2 more
core   +2 more sources

Applied-Field Magnetoplasmadynamic Thrusters for Deep Space Exploration [PDF]

arXiv
Recent advancements in the development of Applied-Field Magnetoplasmadynamic thrusters (AF-MPDTs) present themselves to be an increasingly promising propulsion technology for deep space exploration missions. Various entities, ranging from state-sponsored institutions to privately-owned startups, have developed AF-MPDTs across a wide range of power ...
arxiv  

Bidirectional Human-AI Learning in Real-Time Disoriented Balancing [PDF]

arXiv
We present a real-time system that enables bidirectional human-AI learning and teaching in a balancing task that is a realistic analogue of disorientation during piloting and spaceflight. A human subject and autonomous AI model of choice guide each other in maintaining balance using a visual inverted pendulum (VIP) display.
arxiv  

Evaluation of deep space exploration risks and mitigations against radiation and microgravity. [PDF]

Front Nucl Med, 2023
Dobney W, Mols L, Mistry D, Tabury K, Baselet B, Baatout S.   +5 more
europepmc   +1 more source