Private spaceflight is flight above Earth altitude conducted by and paid for by an entity other than a government. In the early decades of the Space Age, the government space agencies of the Soviet Union and United States pioneered space technology augmented by collaboration with affiliated design bureaus in the USSR and private companies in [...]
Satellites
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*Strategic and Missile Defense Systems **Airborne Laser Test Bed (ALTB) Beam Control/Fire Control System (Formerly Airborne Laser (ABL) **THAAD Terminal High Altitude Area Defense **MKV Multiple Kill Vehicle **Targets and Countermeasures (Unarmed ballistic missile targets used in testing of the elements of the Ballistic Missile Defense System.) **Trident II D5 Fleet Ballistic Missile (FBM) (Lockheed [...]
Lockheed Martin Space Systems is one of the 4 major business divisions of Lockheed Martin. It is headquartered in Denver, Colorado. From a rich history of major companies Lockheed Martin has brought them together to offer design, integration, and production of: * satellites for commercial and military space; * missile defense systems; * strategic missile [...]
Astronautics, or astronautical engineering, is the branch of aerospace engineering that deals with machines designed to exit or work entirely beyond the Earth’s atmosphere. In other words, it is the science and technology of space flight. The term ”astronautics” was coined by analogy with aeronautics. As there is a certain degree of technology overlapping between [...]
In the Autumn of 1945 an RAF electronics officer Scientist and member of the British Interplanetary Society, Arthur C. Clarke, wrote a short article in Wireless World that described the use of manned satellites in 24-hour orbits high above the world's land masses to distribute television programs. His article apparently had little lasting effect in spite of Clarke's repeating the story in his 1951/52 The Exploration of Space.
Satellites, via satellite TV, GPS and weather forecasts, play a role in our everyday lives. From the early days in the 60s satellite technology has come a long way.
A satellite is launched into space on a rocket, and once there it is inserted into the operational orbit and is maintained in that orbit by means of thrusters onboard the satellite itself. This article will summarize the fundamental principles of rocket propulsion and describe the main features of the propulsion systems used on both launch vehicles and satellites.
The AMTECH Thermonuclear Converter uses radiation from a nuclear source to heat liquid sodium and generate a potential across a composite ceramic doped with metal ions. This converts radiation from nuclear isotopes into electrical energy that is used to power the world’s deep space satellites. The prototype and two successive designs to increase the AMTECH’s efficiency where created by Daniel Nase at NASA’s Jet Propulsion Laboratory in July of 1997. Successive designs were drafted, which recycle the waste radiation that escaped from the first layer of the device. The initial device was only 40% efficient. However, the third device boosted efficiency to 75%. Since there are no moving parts in the AMTECH and the nuclear material has a very long decay rate, the AMTECH is expected to power deep space satellites for more than 600 years.Reference: NASA: Jet Propulsion Laboratory
Anyone can watch satellite TV online for free. The only question is how? Let us swim through the swamp of information and arrive at the methods to watch free satellite TV online.
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It's been 50 years since the first satellite, Sputnik, was launched into orbit. Now, communication satellites are used in everything from radio and television to...Translator
