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Concept
Epistemic Contextualism
Epistemic Contextualism
is a
philosophical stance
that suggests the
standards for
knowledge attributions
can vary depending on the
context in which they are made
. This means that what counts as 'knowing' something can shift based on the
conversational context
, the
stakes involved
, or the
interests of the participants
in the conversation.
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Concept
Space Debris Mitigation
Space debris mitigation
involves implementing strategies to minimize the creation of space debris and reduce the risk it poses to
operational spacecraft
and satellites. This includes
designing spacecraft
to
minimize debris generation
, implementing
end-of-life disposal plans
, and actively
removing existing debris from orbit
.
Concept
Orbital Decay
Orbital decay
is the process by which a satellite or other object in orbit gradually loses altitude due to factors like
atmospheric drag
and
gravitational perturbations
, eventually leading to re-entry or
collision with another body
. This phenomenon is crucial for understanding
satellite lifespan
, space debris management, and the
sustainability of space operations
.
Concept
Atmospheric Reentry
Atmospheric reentry
is the
process by which an object from space enters the Earth's atmosphere
, encountering
extreme heat
and
aerodynamic forces
. Successful reentry requires
precise control of speed
, angle, and
thermal protection
to ensure the
object does not burn up
or
crash upon landing
.
Concept
End-of-Life Management
End-of-Life Management
involves the
strategic planning
and
execution of processes
to
responsibly retire
or
dispose of products
, systems, or technologies once they reach the end of their useful life. It aims to
minimize environmental impact
, ensure
compliance with regulations
, and maximize the recovery of valuable materials through recycling or repurposing.
Concept
Space Traffic Management
Space Traffic Management
(STM) is the practice of
coordinating and regulating the increasingly crowded space environment
to ensure the
safe, sustainable, and efficient use of outer space
. It involves
tracking and monitoring space objects
, preventing collisions, and
managing space debris
to protect both current and future space operations.
Concept
International Space Law
International Space Law
governs the
activities of states
and
private entities in outer space
, ensuring the peaceful use and
exploration of space
while promoting
international cooperation
. It is primarily based on five
United Nations treaties
, which establish the
legal framework for space activities
, including the
Outer Space Treaty of 1967
that prohibits the
placement of nuclear weapons in space
and limits the
use of celestial bodies
to
peaceful purposes
.
Concept
Controlled Reentry
Controlled reentry
refers to the deliberate and
planned return of a spacecraft
or satellite back to Earth, ensuring it lands in a
predetermined location
to
minimize risk to populated areas
. This process requires
precise calculations
and maneuvers to manage the spacecraft's trajectory and velocity as it
re-enters the Earth's atmosphere
.
Concept
Spacecraft Propulsion Systems
Spacecraft propulsion systems
are crucial for
maneuvering spacecraft in space
, providing the
necessary thrust
to
change velocity
and direction. These systems range from
traditional chemical rockets
to advanced ion and
nuclear propulsion technologies
, each with
unique advantages
and limitations depending on
mission requirements
.
Concept
Space Sustainability
Space sustainability
focuses on ensuring that the
use of outer space
is conducted in a way that preserves the
space environment
for
future generations
. This involves
mitigating space debris
, promoting
international cooperation
, and
developing technologies
and policies that support the
long-term viability
of
space activities
.
Concept
Active Debris Removal
Active Debris Removal
(ADR) is a critical
space sustainability initiative
aimed at mitigating the growing threat of
space debris
by actively removing
defunct satellites
and
debris from orbit
. It involves a
range of technologies
and methods, such as
robotic arms
, nets, harpoons, and lasers, to
capture and deorbit debris
, ensuring the
long-term viability of space operations
and
reducing collision risks
.
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