Glossary R

Reconnaissance is a mission to obtain information by visual observation or other detection methods, about the activities and resources of an enemy or potential enemy, or about the meteorologic, hydrographic, or geographic characteristics of a particular area.

Deutsch: Rekonnexion / Español: Reconexión / Português: Reconexão / Français: Réconnexion / Italiano: Riconnessione

Reconnection is a fundamental process in space plasma physics, where magnetic field lines from different magnetic domains are spliced together, releasing significant amounts of Energy. This term is essential for understanding various space weather phenomena, including solar flares and geomagnetic storms, which have direct implications for space missions and satellite operations.

Deutsch: Aufzeichnung / Español: Grabación / Português: Gravação / Français: Enregistrement / Italiano: Registrazione

Recording in the Space industry context refers to the systematic documentation, storage, and analysis of data generated by space missions, spacecraft, and Ground operations. This data includes telemetry, video feeds, audio communication, scientific measurements, and system logs, which are recorded to ensure mission integrity, Support post-mission analysis, and contribute to ongoing scientific research. Recording in space missions is vital for monitoring the status of spacecraft, maintaining communication logs, tracking mission events, and preserving scientific data.

Deutsch: Erholung / Español: Recreación / Português: Recreação / Français: Récréation / Italiano: Ricreazione

Recreation in the Space industry refers to the activities and facilities designed to provide relaxation, leisure, and mental well-being for astronauts during their missions. This concept is crucial for maintaining the psychological and physical health of astronauts who spend extended periods in the isolated and confined Environment of space.

Deutsch: Umverteilung / Español: Redistribución / Português: Redistribuição / Français: Redistribution / Italiano: Redistribuzione

Redistribution in the Space industry context refers to the reallocation, repositioning, or repurposing of resources, assets, or data within the space sector. This can involve the Distribution of satellite capacity, orbital slots, data access, or financial investments to optimize the use of space assets and ensure equitable access to space-based services. Redistribution plays a Critical role in managing the limited resources of space, such as frequencies and orbital positions, and in addressing challenges related to space traffic management, satellite coverage, and the allocation of funds and resources for space exploration and commercial activities.

Deutsch: Rotverschiebung / Español: Corrimiento al rojo / Português: Desvio para o vermelho / Français: Décalage vers le rouge / Italiano: Spostamento verso il rosso

In the space industry, the phenomenon of redshift plays a crucial role in understanding the universe's expansion and the motion of celestial objects. This effect, observed in the spectra of light from distant stars and galaxies, provides valuable insights into cosmology and astrophysics. Redshift is a fundamental concept that helps scientists decipher the dynamics of the cosmos.

Deutsch: Reduktionsmittel / Español: reductor / Português: redutor / Français: réducteur / Italiano: riducente

A reductant is a chemical substance that donates electrons or hydrogen in redox reactions, playing a critical role in propulsion and life-support systems within the space industry. This article explores its technical functions, applications, and challenges in aerospace engineering.

English: Redundancy / Deutsch: Redundanz / Español: Redundancia / Português: Redundância / Français: Redondance / Italiano: Ridondanza /

In the Space industry, redundancy is a critical concept that underpins mission success and astronaut safety. It refers to the practice of including duplicate or backup systems, components, or procedures in space missions to ensure continued functionality in the face of equipment failures, malfunctions, or unexpected challenges. Redundancy is a fundamental principle of spacecraft and mission Design, and it plays a pivotal role in mitigating risks, increasing reliability, and achieving mission objectives. This article will explore the concept of redundancy in the space industry, provide examples of its application, discuss associated risks, touch upon historical and legal considerations, and highlight similar strategies used in other high-stakes environments.

Reentry is a critical phase of a spacecraft or a missile's mission, where it enters the Earth's atmosphere after being in space. During this phase, the spacecraft or missile experiences extreme heat, aerodynamic pressure, and other environmental factors that could cause structural damage or other issues. The objective of reentry is to safely land the spacecraft or missile at a predetermined location on the Earth's surface.

Deutsch: Reflexion / Español: Reflexión / Português: Reflexão / Français: Réflexion / Italiano: Riflessione

Reflection in the Space industry refers to the process by which Light, radio waves, or other electromagnetic radiation bounces off surfaces, Spacecraft, or Celestial bodies. Reflection is a Critical concept in designing and operating systems for communication, imaging, navigation, and scientific observation.

Deutsch: Reflektor / Español: Reflector / Português: Refletor / Français: Réflecteur / Italiano: Riflettore

A reflector is a Critical Component in the Space industry used to redirect or concentrate electromagnetic waves, such as radio, microwave, or Light waves. Reflectors are essential in various space applications, including communication, astronomy, and satellite Technology.

Deutsch: Brechung / Español: Refracción / Português: Refração / Français: Réfraction / Italiano: Rifrazione

Refraction in the Space industry refers to the bending of Light or other waves, such as radio waves, as they pass through a medium with varying Density or refractive index. This Phenomenon is crucial for various applications, including optical imaging, communication systems, and atmospheric studies, where precise understanding of wave behaviour is essential for Accuracy and Efficiency.

Deutsch: Regolith / Español: Regolito / Português: Rególito / Français: Régolithe / Italiano: Regolite /

In the Space industry context, regolith refers to the layer of loose, heterogeneous material covering solid rock on the surfaces of Celestial bodies, including planets, moons, and asteroids. This material can consist of Dust, soil, broken rock, and other related materials. Understanding the Composition and properties of regolith is crucial for various aspects of space exploration and utilization, such as landing Spacecraft safely, resource extraction, and the construction of habitats.

Deutsch: Raumfahrtregler / Español: Regulador espacial / Português: Regulador espacial / Français: Régulateur spatial / Italiano: Regolatore spaziale /

In the aerospace context, a regulator is a device that is used to control or maintain a particular Parameter or variable within a certain range.

Deutsch: Gesetzeskonformität / Español: Cumplimiento Normativo / Português: Conformidade Regulatória / Français: Conformité Réglementaire / Italiano: Conformità Normativa

Regulatory compliance in the Space industry refers to the adherence to laws, regulations, guidelines, and specifications relevant to all aspects of space missions and operations. Ensuring regulatory compliance is essential for the legality, safety, and success of space activities.

Deutsch: Relativität / Español: Relatividad / Português: Relatividade / Français: Relativité / Italiano: Relatività

Relativity in the Space industry refers to the application of Albert Einstein's theories of Special Relativity and General Relativity to understand and navigate the complex environment of space. These theories are crucial for accurate satellite navigation, timekeeping, and understanding the dynamics of space and Celestial bodies.

A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals.

Deutsch: Zuverlässigkeit / Español: Fiabilidad / Português: Confiabilidade / Français: Fiabilité / Italiano: Affidabilità

In the space industry, reliability is a critical engineering discipline that ensures spacecraft, launch vehicles, and associated systems perform their intended functions without failure under specified conditions for a defined period. It encompasses quantitative and qualitative methods to predict, assess, and mitigate risks, directly influencing mission success, crew safety, and the economic viability of space exploration. Unlike terrestrial applications, space systems operate in extreme environments with limited opportunities for repair, making reliability a non-negotiable priority.

Deutsch: Abhängigkeit / Español: Dependencia / Português: Dependência / Français: Dépendance / Italiano: Dipendenza

Reliance in the Space industry context refers to the dependence on specific technologies, partnerships, suppliers, and infrastructure to successfully execute space missions and sustain industry operations. Reliance encompasses the extent to which governments, private companies, and space agencies depend on a network of resources—ranging from Launch Vehicles and ground stations to international collaborations and technical components—to support both current and future space initiatives.

Remnant in the space industry context refers to the residual or leftover components, structures, or debris of a celestial object or event that has undergone a significant transformation or destruction. These remnants often hold valuable scientific information and insights into the processes and history of the universe. They can take various forms, including remnants of supernovae, planetary remnants, and even the remnants of defunct spacecraft and satellites. In this article, we will explore the significance of remnants in the space industry, provide examples of different types of remnants, and discuss similar concepts related to cosmic relics and space archaeology.