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spacejunk
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The answer SPACEJUNK has 6 possible clue(s) in existing crosswords.
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The word SPACEJUNK is NOT valid in any word game. (Sorry, you cannot play SPACEJUNK in Scrabble, Words With Friends etc)
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Definitions of spacejunk in various dictionaries:
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Keep reading for additional results and analysis below.
Possible Crossword Clues |
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Debris around the world? |
Orbiting debris |
Discarded stages, for example |
NASA flotsam and jetsam |
Last Seen in these Crosswords & Puzzles |
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Jul 18 2019 USA Today |
Nov 4 2018 Newsday.com |
Jul 8 2017 Newsday.com |
Jan 21 2017 Thomas Joseph - King Feature Syndicate |
Nov 15 2008 New York Times |
Dec 17 2006 L.A. Times Sunday |
Spacejunk might refer to |
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Initially, the term Space debris referred to the natural debris found in the solar system: Asteroids and comets, and the fragments of those larger bodies, also known as meteoroids. However, with the 1979 beginning of the NASA Orbital Debris Program the term also includes the debris from the mass of defunct, artificially created objects in space, most notably in Earth orbit, such as old satellites and spent rocket stages. It includes the fragments from their disintegration, erosion and collisions. As of December 2016, five satellite collisions have resulted in generating space waste. Space debris is also known as orbital debris, space junk, space waste, space trash, space litter or space garbage.As of 5 July 2016, the United States Strategic Command tracked a total of 17,852 artificial objects in orbit above the Earth, including 1,419 operational satellites. However, these are just objects large enough to be tracked. As of July 2013, more than 170 million debris smaller than 1 cm (0.4 in), about 670,000 debris 1–10 cm, and around 29,000 larger debris were estimated to be in orbit. Collisions with debris have become a hazard to spacecraft; they cause damage akin to sandblasting, especially to solar panels and optics like telescopes or star trackers that cannot be covered with a ballistic Whipple shield (unless it is transparent).Below 2,000 km (1,200 mi) Earth-altitude, debris are denser than meteoroids; most are dust from solid rocket motors, surface erosion debris like paint flakes, and frozen coolant from RORSAT nuclear-powered satellites. * For comparison, the International Space Station orbits in the 300–400 kilometres (190–250 mi) range, and the 2009 satellite collision and 2007 antisat test occurred at 800 to 900 kilometres (500 to 560 mi) altitude. The ISS has Whipple shielding; however, known debris with a collision chance over 1/10,000 are avoided by maneuvering the station. * The Kessler syndrome, a runaway chain reaction of collisions exponentially increasing the amount of debris, has been hypothesized to ensue beyond a critical density. This could affect useful polar-orbiting bands, increases the cost of protection for spacecraft missions and could destroy live satellites. Whether Kessler syndrome is already underway has been debated. The measurement, mitigation, and potential removal of debris are conducted by some participants in the space industry. |