Search results
Results from the WOW.Com Content Network
The Mir sample involved 13 astronauts and cosmonauts and 58 American and Russian mission control personnel. The corresponding numbers in the ISS study were 17 space travelers and 128 people on Earth. Subjects completed a weekly questionnaire that included items from a number of valid and reliable measures that assessed mood and group dynamics.
Spaceflight (or space flight) is an application of astronautics to fly objects, usually spacecraft, into or through outer space, either with or without humans on board.Most spaceflight is uncrewed and conducted mainly with spacecraft such as satellites in orbit around Earth, but also includes space probes for flights beyond Earth orbit.
Interplanetary spaceflight or interplanetary travel is the crewed or uncrewed travel between stars and planets, usually within a single planetary system. [1] In practice, spaceflights of this type are confined to travel between the planets of the Solar System .
The Outer Space Treaty established the basic ramifications for space activity in article one: "The exploration and use of outer space, including the Moon and other celestial bodies, shall be carried out for the benefit and in the interests of all countries, irrespective of their degree of economic or scientific development, and shall be the ...
For example, in March 2009 debris believed to be a 10 cm (3.9 in) piece of the Kosmos 1275 satellite nearly hit the ISS. [37] Although it is relatively rare for people on the ground to be hit by space debris, it does happen. In 1969 five sailors on a Japanese ship were injured by space debris. [38]
The green ribbon represents one path from among the many that are mathematically possible along the surface of the darker green bounding tube. Locations where the ribbon changes direction abruptly represent trajectory changes at Lagrange points , while constricted areas represent locations where objects linger in temporary orbit around a point ...
Module at the International Space Station, launched into space on the U.S. Space Shuttle mission STS-122 in 2008. The following outline is provided as an overview of and topical guide to space exploration. Space exploration – use of astronomy and space technology to explore outer space. [1]
A space vehicle's flight is determined by application of Newton's second law of motion: =, where F is the vector sum of all forces exerted on the vehicle, m is its current mass, and a is the acceleration vector, the instantaneous rate of change of velocity (v), which in turn is the instantaneous rate of change of displacement.