Spionsatellit
En spionsatellit är en observationssatellit som uppskjuts för militära eller spioneriändamål.
Spionsatelliter kan användas för att fotografera eller att avlyssna främmande länder. Fram till 1970-talet och till och med 1980-talet brukade fotograferade spionsatelliter skjuta ut behållare med fotografisk film som föll till Jorden och fångades upp efter att fallskärmar fällts ut för att sänka hastigheten.
I USA är tillgänglig information från National Reconnaissance Office huvudsakligen begränsad till program som fanns före 1972. Det avhemligade materialet har visat sig värdefullt för forskningen inom flera ämnen.[1] Senare program är hemliga, så de uppgifter som finns tillgängliga för allmänheten är få och bristfälliga.
Se även
- KH-11
- Almaz
- USA 193
- USA-207
- Orion (satellit)
Referenser
- ^ ”Coronasatelliternas hemligheter”. www.rymdstyrelsen.se. Rymdstyrelsen. 2021. Arkiverad från originalet den 27 december 2022. https://web.archive.org/web/20221227102126/https://www.rymdstyrelsen.se/upptack-rymden/bloggen/2021/1/coronasatelliternas-hemligheter/. Läst 27 december 2022.
Externa länkar
Wikimedia Commons har media som rör spionsatellit.
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Media som används på denna webbplats
MAVEN at Mars, Artist's Concept. This artist's concept depicts NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft near Mars. MAVEN is in development for launch in 2013 and will be the first mission devoted to understanding the Martian upper atmosphere. The mission's principal investigator is Bruce Jakosky from the Laboratory for Atmospheric and Space Physics at the University of Colorado.
The goal of MAVEN is to determine the role that loss of atmospheric gas to space played in changing the Martian climate through time. MAVEN will determine how much of the Martian atmosphere has been lost over time by measuring the current rate of escape to space and gathering enough information about the relevant processes to allow extrapolation backward in time.
NASA Goddard Space Flight Center in Greenbelt, Md. manages the project and will also build some of the instruments for the mission. In addition to the principal investigator coming from CU-LASP, the university will provide science operations, build instruments, and lead education/public outreach. Lockheed Martin of Littleton, Colo., is building the spacecraft and will perform mission operations. The University of California-Berkeley Space Sciences Laboratory is also building instruments for the mission. NASA's Jet Propulsion Laboratory, Pasadena, Calif., will provide navigation support, the Deep Space Network, and the Electra telecommunications relay hardware and operations.
For more information about MAVEN, visit www.nasa.gov/maven.
The Flag of Europe is the flag and emblem of the European Union (EU) and Council of Europe (CoE). It consists of a circle of 12 golden (yellow) stars on a blue background. It was created in 1955 by the CoE and adopted by the EU, then the European Communities, in the 1980s.
The CoE and EU are distinct in membership and nature. The CoE is a 47-member international organisation dealing with human rights and rule of law, while the EU is a quasi-federal union of 27 states focused on economic integration and political cooperation. Today, the flag is mostly associated with the latter.
It was the intention of the CoE that the flag should come to represent Europe as a whole, and since its adoption the membership of the CoE covers nearly the entire continent. This is why the EU adopted the same flag. The flag has been used to represent Europe in sporting events and as a pro-democracy banner outside the Union.
bendera Indonesia
Flag of Iran. The tricolor flag was introduced in 1906, but after the Islamic Revolution of 1979 the Arabic words 'Allahu akbar' ('God is great'), written in the Kufic script of the Qur'an and repeated 22 times, were added to the red and green strips where they border the white central strip and in the middle is the emblem of Iran (which is a stylized Persian alphabet of the Arabic word Allah ("God")).
The official ISIRI standard (translation at FotW) gives two slightly different methods of construction for the flag: a compass-and-straightedge construction used for File:Flag of Iran (official).svg, and a "simplified" construction sheet with rational numbers used for this file.
Flag of Israel. Shows a Magen David (“Shield of David”) between two stripes. The Shield of David is a traditional Jewish symbol. The stripes symbolize a Jewish prayer shawl (tallit).
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