Earth

Can Space Law apply on Earth?

Can Space Law apply on Earth? When I tell people about my interest in Space Law, they are usually surprised. They ask me what is Space Law and I try to give a simple definition. Recently, I have asked myself if Space Law could apply on Earth and the answer is of course: yes!

Principles Relating to Remote Sensing of the Earth from Outer Space

The Principles Relating to Remote Sensing of the Earth from Outer Space were adopted by consensus on December 3, 1986. They provide a set of non-binding yet agreed and politically relevant principles to guide the activities of remote sensing by the United Nations member states.

The Solar System

The Solar System has three major zones: the inner solid planets and asteroids, the large gaseous planets, and the ice-dominated small bodies that make up the Kuiper belt and Oort Cloud.

An introduction to Orbital Mechanics

Orbital mechanics is the application of the laws of physics to describing the motion of spacecraft. It is one of the fundamental topics in astronautics and is essential to the design, implementation, and operation of a space mission. As well as defining the sorts of orbits that are possible, orbital mechanics is needed to determine spacecraft trajectories.

Orbital slots and space congestion

Today, any company or nation planning to launch a satellite to GEO must apply to the ITU for an orbital slot, and popular regions over North America, Europe, and eastern Asia have become so congested that few or no slots are left for new entrants to the market. With most of the so-called hot orbital slots taken, what opportunities remain for satellite operators to develop new positions or make better use of the existing slots?

What is orbital station-keeping?

For many Earth satellites, the effects of the non-Keplerian forces, like the deviations of the gravitational force of the Earth from that of a homogeneous sphere, the gravitational forces from Sun/Moon, solar radiation pressure and air drag, must be counteracted. The orbital manoeuvres made by thruster burns that are needed to keep a spacecraft in a particular assigned orbit are called orbital station-keeping.

Launch period and launch window

A launch period refers to the days that the rocket can launch to reach its intended orbit. A launch window indicates the time frame on a given day in the launch period that the rocket can launch to reach its intended orbit. The dynamics change from mission to mission, and determining the launch period and launch window is an important part of the overall flight design.

The overview effect

The overview effect is a cognitive shift in awareness reported by some astronauts during spaceflight, often while viewing the Earth from outer space. Many people who have experienced outer space have lived the overview effect, “truly transformative experiences including senses of wonder and awe, unity with nature, transcendence, and universal brotherhood”.