MISAT: Designing a Series of Powerful Small Satellites Based upon Micro Systems Technology

MISAT is a research and development cluster which will create a small satellite platform based on Micro Systems Technology (MST) aiming at innovative space as well as terrestrial applications. MISAT is part of the Dutch MicroNed program which has established a microsystems infrastructure to fully exploit the MST knowledge chain involving public and industrial partners alike. The cluster covers MST-related developments for the spacecraft bus and payload, as well as the satellite architecture. Particular emphasis is given to distributed systems in space to fully exploit the potential of miniaturization for future mission concepts. Examples of current developments are wireless sensor and actuator networks with plug and play characteristics, autonomous digital Sun sensors, re-configurable radio front ends with minimum power consumption, or micro-machined electrostatic accelerometer and gradiometer system for scientific research in fundamental physics as well as geophysics. As a result of MISAT, a first nano-satellite will be launched in 2007 to demonstrate the next generation of Sun sensors, power subsystems and satellite architecture technology. Rapid access to in-orbit technology demonstration and verification will be provided by a series of small satellites. This will include a formation flying mission, which will increasingly rely on MISAT technology to improve functionality and reduce size, mass and power for advanced technology demonstration and novel scientific applications.

Conceptual globalism and globalisation : an initiation

Although the use of these two terms began in the latter half of the twentieth century, they have a longer lineage. Concept economic globalism of contemporary kind can be traced back to the liberal thinking of classical economists like Adam Smith and Herbert Spencer. Terms like globalize were first seen in Reiser and Davies (1944). Webster International Dictionary included them in 1961, while they appeared in Oxford Dictionary in 1986. The term globalization was coined in 1962. Most major languages were quick to develop equivalent taxonomy. In business and economics, marketing legend Theodore Levitt of Harvard Business School used it first in 1983 in an article entitled "The Globalization of Markets". His article is regarded as an enduring classic and its insightful language is still relevant today

Solar Sailing: applications and technology advancement

Harnessing the power of the Sun to propel a spacecraft may appear somewhat ambitious and the observation that light exerts a force contradicts everyday experiences. However, it is an accepted phenomenon that the quantum packets of energy which compose Sunlight, that is to say photons, perturb the orbit attitude of spacecraft through conservation of momentum; this perturbation is known as solar radiation pressure (SRP). To be exact, the momentum of the electromagnetic energy from the Sun pushes the spacecraft and from Newton’s second law momentum is transferred when the energy strikes and when it is reflected. The concept of solar sailing is thus the use of these quantum packets of energy, i.e. SRP, to propel a spacecraft, potentially providing a continuous acceleration limited only by the lifetime of the sail materials in the space environment. The momentum carried by individual photons is extremely small; at best a solar sail will experience 9 N of force per square kilometre of sail located in Earth orbit (McInnes, 1999), thus to provide a suitably large momentum transfer the sail is required to have a large surface area while maintaining as low a mass as possible. Adding the impulse due to incident and reflected photons it is found that the idealised thrust vector is directed normal to the surface of the sail, hence by controlling the orientation of the sail relative to the Sun orbital angular momentum can be gained or reduced. Using momentum change through reflecting such quantum packets of energy the sail slowly but continuously accelerates to accomplish a wide-range of potential missions

Navigating the Convergence of Artificial Intelligence and Space Law: Challenges and Opportunities

The space industry is one of the most technologically advanced industries that aims for scientific explorations that benefit humanity on multiple fronts. Further, Artificial Intelligence (AI) technologies comprise game-changing tools that could be utilized to facilitate space exploration aims. The emergence of AI in the space industry would evolve how both industries look. Since many challenges in the current space industry could be addressed by implementing artificial intelligence, space objects will create "Intelligent Space Objects". Different studies were conducted to explore the implementation of AI technologies in space activities and their legal implications. The scope of this paper goes beyond the existing work. It will investigate the main AI applications in space and then explore their legal challenges, including issues related to regulations, liability, and policy questions. Accordingly, it will discuss the need for developing a novel legal framework to address these challenges, creating a strategic opportunity for international collaboration between states and organizations that will contribute to advancing space law. This study will review, evaluate, and analyze the current situation and recommend ways to establish a novel international space organization. Doi: 10.28991/HIJ-2023-04-01-04 Full Text: PD

Internet of things

Manual of Digital Earth / Editors: Huadong Guo, Michael F. Goodchild, Alessandro Annoni .- Springer, 2020 .- ISBN: 978-981-32-9915-3Digital Earth was born with the aim of replicating the real world within the digital world. Many efforts have been made to observe and sense the Earth, both from space (remote sensing) and by using in situ sensors. Focusing on the latter, advances in Digital Earth have established vital bridges to exploit these sensors and their networks by taking location as a key element. The current era of connectivity envisions that everything is connected to everything. The concept of the Internet of Things(IoT)emergedasaholisticproposaltoenableanecosystemofvaried,heterogeneous networked objects and devices to speak to and interact with each other. To make the IoT ecosystem a reality, it is necessary to understand the electronic components, communication protocols, real-time analysis techniques, and the location of the objects and devices. The IoT ecosystem and the Digital Earth (DE) jointly form interrelated infrastructures for addressing today’s pressing issues and complex challenges. In this chapter, we explore the synergies and frictions in establishing an efficient and permanent collaboration between the two infrastructures, in order to adequately address multidisciplinary and increasingly complex real-world problems. Although there are still some pending issues, the identified synergies generate optimism for a true collaboration between the Internet of Things and the Digital Earth